| 年份 | 瑙魯 |
|---|---|
| 2023 | - |
| 2022 | 3.33708 |
| 2021 | 3.47098 |
| 2020 | 3.6284 |
| 2019 | 3.6611 |
| 2018 | 3.71827 |
| 2017 | 3.82232 |
| 2016 | 3.9165 |
| 2015 | 3.99672 |
| 2014 | 4.06716 |
| 2013 | 4.1058 |
| 2012 | 4.13854 |
| 2011 | 4.09095 |
| 2010 | 4.04382 |
| 2009 | 4.04665 |
| 2008 | 4.01755 |
| 2007 | 3.99482 |
| 2006 | 3.97252 |
| 2005 | 3.8745 |
| 2004 | 3.69632 |
| 2003 | 3.53903 |
| 2002 | 3.50195 |
| 2001 | 3.52049 |
| 2000 | 3.50388 |
| 1999 | 3.38966 |
| 1998 | 3.11195 |
| 1997 | 2.80737 |
| 1996 | 2.57151 |
| 1995 | 2.30677 |
| 1994 | 2.08521 |
| 1993 | 2.05335 |
| 1992 | 2.12571 |
| 1991 | 2.28368 |
| 1990 | 2.61003 |
| 1989 | 2.94017 |
| 1988 | 3.13244 |
| 1987 | 3.39721 |
| 1986 | 3.75081 |
| 1985 | 4.01568 |
| 1984 | 4.34599 |
| 1983 | 4.74637 |
| 1982 | 4.77134 |
| 1981 | 4.46034 |
| 1980 | 4.23794 |
| 1979 | 3.98506 |
| 1978 | 3.66295 |
| 1977 | 3.39744 |
| 1976 | 3.20197 |
| 1975 | 3.06687 |
| 1974 | 3.05722 |
| 1973 | 3.01394 |
| 1972 | 2.82767 |
| 1971 | 2.56177 |
| 1970 | 2.36279 |
| 1969 | 2.30371 |
| 1968 | 2.21283 |
| 1967 | 2.15076 |
| 1966 | 2.11042 |
| 1965 | 1.92566 |
| 1964 | 1.71705 |
| 1963 | 1.72009 |
| 1962 | 2.01061 |
| 1961 | 2.49633 |
| 1960 | 2.79195 |