| 年份 | 美国 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | -2896000 |
| 2020 | -2735000 |
| 2019 | 1.73百万 |
| 2018 | -2364000 |
| 2017 | -2231000 |
| 2016 | -3016000 |
| 2015 | -2259000 |
| 2014 | -2075000 |
| 2013 | -2552000 |
| 2012 | -2377000 |
| 2011 | -2575000 |
| 2010 | -2455000 |
| 2009 | -1884000 |
| 2008 | -2421000 |
| 2007 | -1963000 |
| 2006 | -2120000 |
| 2005 | -2161000 |
| 2004 | -2227000 |
| 2003 | -1553000 |
| 2002 | -2189000 |
| 2001 | -2134000 |
| 2000 | -1446000 |
| 1999 | -1952000 |
| 1998 | -1780000 |
| 1997 | -1703000 |
| 1996 | -1630000 |
| 1995 | -1571000 |
| 1994 | -1530000 |
| 1993 | -1471000 |
| 1992 | -1432000 |
| 1991 | -1383000 |
| 1990 | -1384000 |
| 1989 | -1359000 |
| 1988 | -1310000 |
| 1987 | -1258000 |
| 1986 | -1216000 |
| 1985 | -1176000 |
| 1984 | -1129000 |
| 1983 | -1052000 |
| 1982 | -1006000 |
| 1981 | -1024000 |
| 1980 | -999000 |
| 1979 | -1002000 |
| 1978 | -971000 |
| 1977 | -920000 |
| 1976 | -879000 |
| 1975 | -834000 |
| 1974 | -836000 |
| 1973 | -840000 |
| 1972 | -796000 |
| 1971 | -756000 |
| 1970 | -732000 |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |