| 年份 | 瑙魯 |
|---|---|
| 2023 | - |
| 2022 | 4.14918 |
| 2021 | 4.07201 |
| 2020 | 4.06991 |
| 2019 | 4.12822 |
| 2018 | 4.14849 |
| 2017 | 4.17437 |
| 2016 | 4.29527 |
| 2015 | 4.40764 |
| 2014 | 4.49861 |
| 2013 | 4.60876 |
| 2012 | 4.65029 |
| 2011 | 4.66889 |
| 2010 | 4.72177 |
| 2009 | 4.73452 |
| 2008 | 4.73458 |
| 2007 | 4.78323 |
| 2006 | 4.789 |
| 2005 | 4.70033 |
| 2004 | 4.64635 |
| 2003 | 4.59792 |
| 2002 | 4.53184 |
| 2001 | 4.52379 |
| 2000 | 4.60446 |
| 1999 | 4.64226 |
| 1998 | 4.56288 |
| 1997 | 4.50375 |
| 1996 | 4.36292 |
| 1995 | 4.11604 |
| 1994 | 3.88726 |
| 1993 | 3.71814 |
| 1992 | 3.61631 |
| 1991 | 3.78241 |
| 1990 | 4.22395 |
| 1989 | 4.8597 |
| 1988 | 5.58665 |
| 1987 | 6.20122 |
| 1986 | 6.75011 |
| 1985 | 7.22565 |
| 1984 | 7.60394 |
| 1983 | 7.91391 |
| 1982 | 7.87796 |
| 1981 | 7.68096 |
| 1980 | 7.7221 |
| 1979 | 7.76177 |
| 1978 | 7.7514 |
| 1977 | 7.84631 |
| 1976 | 7.86108 |
| 1975 | 7.62752 |
| 1974 | 7.26793 |
| 1973 | 6.89237 |
| 1972 | 6.52014 |
| 1971 | 6.1848 |
| 1970 | 6.03698 |
| 1969 | 6.0707 |
| 1968 | 6.0881 |
| 1967 | 6.03495 |
| 1966 | 5.83673 |
| 1965 | 5.61467 |
| 1964 | 5.42874 |
| 1963 | 5.39716 |
| 1962 | 5.61709 |
| 1961 | 5.62295 |
| 1960 | 5.33173 |