| 年份 | 美国人口年度增长率 | 
                                                                                                                                                                                                                                | 2021 | 0.12% | 
                                                                                                                                        | 2020 | 0.35% | 
                                                                                                                                        | 2019 | 0.46% | 
                                                                                                                                        | 2018 | 0.53% | 
                                                                                                                                        | 2017 | 0.63% | 
                                                                                                                                        | 2016 | 0.72% | 
                                                                                                                                        | 2015 | 0.74% | 
                                                                                                                                        | 2014 | 0.73% | 
                                                                                                                                        | 2013 | 0.69% | 
                                                                                                                                        | 2012 | 0.73% | 
                                                                                                                                        | 2011 | 0.73% | 
                                                                                                                                        | 2010 | 0.83% | 
                                                                                                                                        | 2009 | 0.88% | 
                                                                                                                                        | 2008 | 0.95% | 
                                                                                                                                        | 2007 | 0.95% | 
                                                                                                                                        | 2006 | 0.96% | 
                                                                                                                                        | 2005 | 0.92% | 
                                                                                                                                        | 2004 | 0.93% | 
                                                                                                                                        | 2003 | 0.86% | 
                                                                                                                                        |  | 
                                                                                                        | 2002 | 0.93% | 
                                                                                                                                        | 2001 | 0.99% | 
                                                                                                                                        | 2000 | 1.11% | 
                                                                                                                                        | 1999 | 1.15% | 
                                                                                                                                        | 1998 | 1.17% | 
                                                                                                                                        | 1997 | 1.20% | 
                                                                                                                                        | 1996 | 1.16% | 
                                                                                                                                        | 1995 | 1.19% | 
                                                                                                                                        | 1994 | 1.23% | 
                                                                                                                                        | 1993 | 1.32% | 
                                                                                                                                        | 1992 | 1.39% | 
                                                                                                                                        | 1991 | 1.34% | 
                                                                                                                                        | 1990 | 1.13% | 
                                                                                                                                        | 1989 | 0.94% | 
                                                                                                                                        | 1988 | 0.91% | 
                                                                                                                                        | 1987 | 0.89% | 
                                                                                                                                        | 1986 | 0.92% | 
                                                                                                                                        | 1985 | 0.89% | 
                                                                                                                                        | 1984 | 0.87% | 
                                                                                                                                        | 1983 | 0.91% | 
                                                                                                                                        |  | 
                                                                                                        | 1982 | 0.95% | 
                                                                                                                                        | 1981 | 0.98% | 
                                                                                                                                        | 1980 | 0.96% | 
                                                                                                                                        | 1979 | 1.10% | 
                                                                                                                                        | 1978 | 1.06% | 
                                                                                                                                        | 1977 | 1.01% | 
                                                                                                                                        | 1976 | 0.95% | 
                                                                                                                                        | 1975 | 0.99% | 
                                                                                                                                        | 1974 | 0.91% | 
                                                                                                                                        | 1973 | 0.95% | 
                                                                                                                                        | 1972 | 1.07% | 
                                                                                                                                        | 1971 | 1.26% | 
                                                                                                                                        | 1970 | 1.17% | 
                                                                                                                                        | 1969 | 0.98% | 
                                                                                                                                        | 1968 | 1.00% | 
                                                                                                                                        | 1967 | 1.09% | 
                                                                                                                                        | 1966 | 1.15% | 
                                                                                                                                        | 1965 | 1.25% | 
                                                                                                                                        | 1964 | 1.39% | 
                                                                                                                                        | 1963 | 1.44% | 
                                                                                                                                        | 1962 | 1.54% | 
                                                                                                                                        | 1961 | 1.66% | 
                                                                                                                                        | 1960 | 1.70% | 
                                                                                                                                        | 1959 | 1.70% |