| 年份 | 北马里亚纳群岛 |
|---|---|
| 2023 | - |
| 2022 | 10.6716 |
| 2021 | 10.9769 |
| 2020 | 11.0668 |
| 2019 | 10.9093 |
| 2018 | 10.5231 |
| 2017 | 10.0213 |
| 2016 | 9.47645 |
| 2015 | 8.95862 |
| 2014 | 8.5143 |
| 2013 | 8.1636 |
| 2012 | 7.87381 |
| 2011 | 7.594 |
| 2010 | 7.10725 |
| 2009 | 6.45103 |
| 2008 | 5.80082 |
| 2007 | 5.17088 |
| 2006 | 4.57674 |
| 2005 | 4.04351 |
| 2004 | 3.5867 |
| 2003 | 3.19749 |
| 2002 | 2.84639 |
| 2001 | 2.53792 |
| 2000 | 2.30496 |
| 1999 | 2.22186 |
| 1998 | 2.24236 |
| 1997 | 2.28 |
| 1996 | 2.33617 |
| 1995 | 2.30291 |
| 1994 | 2.15561 |
| 1993 | 2.01141 |
| 1992 | 1.90213 |
| 1991 | 1.82456 |
| 1990 | 1.77102 |
| 1989 | 1.75783 |
| 1988 | 1.78456 |
| 1987 | 1.81769 |
| 1986 | 1.84876 |
| 1985 | 1.85442 |
| 1984 | 1.85798 |
| 1983 | 1.90378 |
| 1982 | 1.98265 |
| 1981 | 2.06831 |
| 1980 | 2.18991 |
| 1979 | 2.26446 |
| 1978 | 2.26491 |
| 1977 | 2.2924 |
| 1976 | 2.33576 |
| 1975 | 2.41858 |
| 1974 | 2.54678 |
| 1973 | 2.664 |
| 1972 | 2.7122 |
| 1971 | 2.69083 |
| 1970 | 2.68524 |
| 1969 | 2.68834 |
| 1968 | 2.74039 |
| 1967 | 2.81188 |
| 1966 | 2.8547 |
| 1965 | 2.90338 |
| 1964 | 2.98235 |
| 1963 | 2.98069 |
| 1962 | 2.89274 |
| 1961 | 2.87087 |
| 1960 | 2.82226 |