| 年份 | 北马里亚纳群岛 |
|---|---|
| 2023 | - |
| 2022 | 10.0105 |
| 2021 | 9.57417 |
| 2020 | 9.10873 |
| 2019 | 8.66303 |
| 2018 | 8.27315 |
| 2017 | 7.94271 |
| 2016 | 7.62337 |
| 2015 | 7.27603 |
| 2014 | 6.85237 |
| 2013 | 6.356 |
| 2012 | 5.8364 |
| 2011 | 5.298 |
| 2010 | 4.65734 |
| 2009 | 4.0247 |
| 2008 | 3.51565 |
| 2007 | 3.06717 |
| 2006 | 2.68369 |
| 2005 | 2.35836 |
| 2004 | 2.05752 |
| 2003 | 1.77132 |
| 2002 | 1.52574 |
| 2001 | 1.31658 |
| 2000 | 1.16316 |
| 1999 | 1.13101 |
| 1998 | 1.2046 |
| 1997 | 1.33404 |
| 1996 | 1.52547 |
| 1995 | 1.66835 |
| 1994 | 1.64268 |
| 1993 | 1.56009 |
| 1992 | 1.48475 |
| 1991 | 1.40652 |
| 1990 | 1.32222 |
| 1989 | 1.25724 |
| 1988 | 1.23047 |
| 1987 | 1.23625 |
| 1986 | 1.25537 |
| 1985 | 1.29017 |
| 1984 | 1.3429 |
| 1983 | 1.433 |
| 1982 | 1.56746 |
| 1981 | 1.7342 |
| 1980 | 1.92066 |
| 1979 | 2.04121 |
| 1978 | 2.07022 |
| 1977 | 2.06778 |
| 1976 | 2.11362 |
| 1975 | 2.22619 |
| 1974 | 2.27944 |
| 1973 | 2.29297 |
| 1972 | 2.33641 |
| 1971 | 2.39795 |
| 1970 | 2.45306 |
| 1969 | 2.4839 |
| 1968 | 2.42084 |
| 1967 | 2.34324 |
| 1966 | 2.29514 |
| 1965 | 2.21677 |
| 1964 | 2.16068 |
| 1963 | 2.17254 |
| 1962 | 2.22102 |
| 1961 | 2.24531 |
| 1960 | 2.2578 |