| 年份 | 瑙魯 |
|---|---|
| 2023 | - |
| 2022 | 2.45895 |
| 2021 | 2.2859 |
| 2020 | 2.11937 |
| 2019 | 1.97832 |
| 2018 | 1.87856 |
| 2017 | 1.81896 |
| 2016 | 1.72693 |
| 2015 | 1.60923 |
| 2014 | 1.51744 |
| 2013 | 1.43078 |
| 2012 | 1.33097 |
| 2011 | 1.31285 |
| 2010 | 1.35247 |
| 2009 | 1.40226 |
| 2008 | 1.4693 |
| 2007 | 1.51463 |
| 2006 | 1.52023 |
| 2005 | 1.48776 |
| 2004 | 1.42726 |
| 2003 | 1.36311 |
| 2002 | 1.37178 |
| 2001 | 1.46193 |
| 2000 | 1.57568 |
| 1999 | 1.66137 |
| 1998 | 1.74914 |
| 1997 | 1.81906 |
| 1996 | 1.81238 |
| 1995 | 1.74979 |
| 1994 | 1.66926 |
| 1993 | 1.59894 |
| 1992 | 1.59451 |
| 1991 | 1.80772 |
| 1990 | 2.15681 |
| 1989 | 2.47703 |
| 1988 | 2.71558 |
| 1987 | 2.88275 |
| 1986 | 2.99654 |
| 1985 | 2.99513 |
| 1984 | 2.89231 |
| 1983 | 2.79001 |
| 1982 | 2.63295 |
| 1981 | 2.45076 |
| 1980 | 2.30532 |
| 1979 | 2.10256 |
| 1978 | 1.94934 |
| 1977 | 1.88831 |
| 1976 | 1.86136 |
| 1975 | 1.86844 |
| 1974 | 1.90939 |
| 1973 | 1.93119 |
| 1972 | 1.91763 |
| 1971 | 1.91059 |
| 1970 | 1.92856 |
| 1969 | 1.95898 |
| 1968 | 2.07538 |
| 1967 | 2.25693 |
| 1966 | 2.41674 |
| 1965 | 2.59304 |
| 1964 | 2.81703 |
| 1963 | 3.02039 |
| 1962 | 3.2825 |
| 1961 | 3.55602 |
| 1960 | 3.83021 |