| 年份 | 北马里亚纳群岛 |
|---|---|
| 2023 | - |
| 2022 | 2.98479 |
| 2021 | 2.75783 |
| 2020 | 2.52154 |
| 2019 | 2.25581 |
| 2018 | 1.96446 |
| 2017 | 1.6667 |
| 2016 | 1.3989 |
| 2015 | 1.18573 |
| 2014 | 1.03732 |
| 2013 | 0.963829 |
| 2012 | 0.939197 |
| 2011 | 0.939334 |
| 2010 | 0.923258 |
| 2009 | 0.876084 |
| 2008 | 0.82266 |
| 2007 | 0.750336 |
| 2006 | 0.649736 |
| 2005 | 0.553703 |
| 2004 | 0.483236 |
| 2003 | 0.422267 |
| 2002 | 0.379226 |
| 2001 | 0.348611 |
| 2000 | 0.329739 |
| 1999 | 0.348853 |
| 1998 | 0.380251 |
| 1997 | 0.406409 |
| 1996 | 0.448012 |
| 1995 | 0.47149 |
| 1994 | 0.466012 |
| 1993 | 0.467787 |
| 1992 | 0.443737 |
| 1991 | 0.386779 |
| 1990 | 0.350141 |
| 1989 | 0.34939 |
| 1988 | 0.366923 |
| 1987 | 0.409337 |
| 1986 | 0.47884 |
| 1985 | 0.54771 |
| 1984 | 0.60414 |
| 1983 | 0.674749 |
| 1982 | 0.750272 |
| 1981 | 0.773307 |
| 1980 | 0.772388 |
| 1979 | 0.762565 |
| 1978 | 0.724424 |
| 1977 | 0.690069 |
| 1976 | 0.667279 |
| 1975 | 0.631882 |
| 1974 | 0.589933 |
| 1973 | 0.564165 |
| 1972 | 0.567322 |
| 1971 | 0.610385 |
| 1970 | 0.655106 |
| 1969 | 0.67187 |
| 1968 | 0.691812 |
| 1967 | 0.724234 |
| 1966 | 0.744581 |
| 1965 | 0.73078 |
| 1964 | 0.735739 |
| 1963 | 0.760892 |
| 1962 | 0.754798 |
| 1961 | 0.723992 |
| 1960 | 0.722229 |