| 年份 | 美国岁数 |
|---|---|
| 2023 | 75.80 |
| 2022 | 74.80 |
| 2021 | 73.50 |
| 2020 | 74.20 |
| 2019 | 76.30 |
| 2018 | 76.20 |
| 2017 | 76.10 |
| 2016 | 76.10 |
| 2015 | 76.30 |
| 2014 | 76.50 |
| 2013 | 76.40 |
| 2012 | 76.40 |
| 2011 | 76.30 |
| 2010 | 76.20 |
| 2009 | 76.00 |
| 2008 | 75.60 |
| 2007 | 75.50 |
| 2006 | 75.20 |
| 2005 | 75.00 |
|
|
|
| 2004 | 75.00 |
| 2003 | 74.50 |
| 2002 | 74.40 |
| 2001 | 74.30 |
| 2000 | 74.10 |
| 1999 | 73.90 |
| 1998 | 73.80 |
| 1997 | 73.60 |
| 1996 | 73.10 |
| 1995 | 72.50 |
| 1994 | 72.40 |
| 1993 | 72.20 |
| 1992 | 72.30 |
| 1991 | 72.00 |
| 1990 | 71.80 |
| 1989 | 71.70 |
| 1988 | 71.40 |
| 1987 | 71.40 |
| 1986 | 71.20 |
| 1985 | 71.10 |
|
|
|
| 1984 | 71.10 |
| 1983 | 71.00 |
| 1982 | 70.80 |
| 1981 | 70.40 |
| 1980 | 70.00 |
| 1979 | 70.00 |
| 1978 | 69.60 |
| 1977 | 69.50 |
| 1976 | 69.10 |
| 1975 | 68.80 |
| 1974 | 68.20 |
| 1973 | 67.60 |
| 1972 | 67.40 |
| 1971 | 67.40 |
| 1970 | 67.10 |
| 1969 | 66.80 |
| 1968 | 66.00 |
| 1967 | 67.00 |
| 1966 | 66.70 |
| 1965 | 66.80 |
| 1964 | 66.80 |
| 1963 | 66.60 |
| 1962 | 66.90 |
| 1961 | 67.10 |
| 1960 | 66.60 |