| 年份 | 北马里亚纳群岛 |
|---|---|
| 2023 | - |
| 2022 | 5.92266 |
| 2021 | 5.54762 |
| 2020 | 5.41672 |
| 2019 | 5.5329 |
| 2018 | 5.85622 |
| 2017 | 6.29169 |
| 2016 | 6.78309 |
| 2015 | 7.27722 |
| 2014 | 7.70423 |
| 2013 | 8.00342 |
| 2012 | 8.16757 |
| 2011 | 8.17784 |
| 2010 | 8.00868 |
| 2009 | 8.04529 |
| 2008 | 8.05419 |
| 2007 | 7.51441 |
| 2006 | 6.57496 |
| 2005 | 5.52675 |
| 2004 | 4.72576 |
| 2003 | 4.29443 |
| 2002 | 4.154 |
| 2001 | 4.23069 |
| 2000 | 4.42662 |
| 1999 | 4.71364 |
| 1998 | 5.12434 |
| 1997 | 5.62784 |
| 1996 | 6.1303 |
| 1995 | 6.32398 |
| 1994 | 6.06018 |
| 1993 | 5.62348 |
| 1992 | 5.22933 |
| 1991 | 4.95905 |
| 1990 | 4.84263 |
| 1989 | 5.05272 |
| 1988 | 5.6448 |
| 1987 | 6.48117 |
| 1986 | 7.51164 |
| 1985 | 8.6627 |
| 1984 | 9.81149 |
| 1983 | 10.7552 |
| 1982 | 11.2206 |
| 1981 | 11.0172 |
| 1980 | 10.1869 |
| 1979 | 9.65916 |
| 1978 | 9.81212 |
| 1977 | 10.015 |
| 1976 | 10.1928 |
| 1975 | 10.3166 |
| 1974 | 10.2918 |
| 1973 | 10.3045 |
| 1972 | 10.5749 |
| 1971 | 10.9955 |
| 1970 | 11.3873 |
| 1969 | 11.5996 |
| 1968 | 11.486 |
| 1967 | 11.0492 |
| 1966 | 10.5372 |
| 1965 | 10.1043 |
| 1964 | 9.79641 |
| 1963 | 9.63102 |
| 1962 | 9.55359 |
| 1961 | 9.48986 |
| 1960 | 9.49215 |