| 年份 | 北马里亚纳群岛 |
|---|---|
| 2023 | - |
| 2022 | 8.07959 |
| 2021 | 7.82231 |
| 2020 | 7.47451 |
| 2019 | 7.01059 |
| 2018 | 6.46396 |
| 2017 | 5.9092 |
| 2016 | 5.35846 |
| 2015 | 4.8527 |
| 2014 | 4.43549 |
| 2013 | 4.09355 |
| 2012 | 3.79494 |
| 2011 | 3.52114 |
| 2010 | 3.20561 |
| 2009 | 2.88442 |
| 2008 | 2.56979 |
| 2007 | 2.23995 |
| 2006 | 1.93551 |
| 2005 | 1.68167 |
| 2004 | 1.49945 |
| 2003 | 1.39652 |
| 2002 | 1.34477 |
| 2001 | 1.32077 |
| 2000 | 1.30195 |
| 1999 | 1.30065 |
| 1998 | 1.3339 |
| 1997 | 1.3664 |
| 1996 | 1.40004 |
| 1995 | 1.41246 |
| 1994 | 1.35143 |
| 1993 | 1.24877 |
| 1992 | 1.16207 |
| 1991 | 1.08929 |
| 1990 | 1.0346 |
| 1989 | 1.0399 |
| 1988 | 1.0784 |
| 1987 | 1.12324 |
| 1986 | 1.18774 |
| 1985 | 1.23457 |
| 1984 | 1.2611 |
| 1983 | 1.29759 |
| 1982 | 1.30774 |
| 1981 | 1.30794 |
| 1980 | 1.36653 |
| 1979 | 1.45003 |
| 1978 | 1.48419 |
| 1977 | 1.56016 |
| 1976 | 1.68962 |
| 1975 | 1.77678 |
| 1974 | 1.83392 |
| 1973 | 1.89641 |
| 1972 | 1.92133 |
| 1971 | 1.86554 |
| 1970 | 1.84008 |
| 1969 | 1.87728 |
| 1968 | 1.83851 |
| 1967 | 1.7363 |
| 1966 | 1.70594 |
| 1965 | 1.72464 |
| 1964 | 1.69321 |
| 1963 | 1.66771 |
| 1962 | 1.66056 |
| 1961 | 1.67075 |
| 1960 | 1.69666 |