| 年份 | 北马里亚纳群岛  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 0.749014 | 
| 2021 | 0.718126 | 
| 2020 | 0.687182 | 
| 2019 | 0.641577 | 
| 2018 | 0.592871 | 
| 2017 | 0.545095 | 
| 2016 | 0.488971 | 
| 2015 | 0.437328 | 
| 2014 | 0.401072 | 
| 2013 | 0.372802 | 
| 2012 | 0.350609 | 
| 2011 | 0.339759 | 
| 2010 | 0.332657 | 
| 2009 | 0.307398 | 
| 2008 | 0.277504 | 
| 2007 | 0.252745 | 
| 2006 | 0.231288 | 
| 2005 | 0.210025 | 
| 2004 | 0.193294 | 
| 2003 | 0.186294 | 
| 2002 | 0.176165 | 
| 2001 | 0.164439 | 
| 2000 | 0.159636 | 
| 1999 | 0.167559 | 
| 1998 | 0.179563 | 
| 1997 | 0.197351 | 
| 1996 | 0.218406 | 
| 1995 | 0.228723 | 
| 1994 | 0.220849 | 
| 1993 | 0.208798 | 
| 1992 | 0.200975 | 
| 1991 | 0.177602 | 
| 1990 | 0.158256 | 
| 1989 | 0.15092 | 
| 1988 | 0.147664 | 
| 1987 | 0.148628 | 
| 1986 | 0.14713 | 
| 1985 | 0.14803 | 
| 1984 | 0.155162 | 
| 1983 | 0.170541 | 
| 1982 | 0.176042 | 
| 1981 | 0.176619 | 
| 1980 | 0.178243 | 
| 1979 | 0.184864 | 
| 1978 | 0.200247 | 
| 1977 | 0.20402 | 
| 1976 | 0.214264 | 
| 1975 | 0.225225 | 
| 1974 | 0.230843 | 
| 1973 | 0.224307 | 
| 1972 | 0.2118 | 
| 1971 | 0.223521 | 
| 1970 | 0.240848 | 
| 1969 | 0.256892 | 
| 1968 | 0.274829 | 
| 1967 | 0.259981 | 
| 1966 | 0.254477 | 
| 1965 | 0.272825 | 
| 1964 | 0.282201 | 
| 1963 | 0.271003 | 
| 1962 | 0.215657 | 
| 1961 | 0.189352 | 
| 1960 | 0.183423 |