| 年份 | 瑙魯 |
|---|---|
| 2023 | - |
| 2022 | 3.22477 |
| 2021 | 3.17834 |
| 2020 | 3.11596 |
| 2019 | 3.05651 |
| 2018 | 3.06864 |
| 2017 | 3.15036 |
| 2016 | 3.13141 |
| 2015 | 3.08422 |
| 2014 | 3.03172 |
| 2013 | 2.9218 |
| 2012 | 2.82751 |
| 2011 | 2.83984 |
| 2010 | 2.86853 |
| 2009 | 2.83066 |
| 2008 | 2.76144 |
| 2007 | 2.69974 |
| 2006 | 2.67822 |
| 2005 | 2.6494 |
| 2004 | 2.59042 |
| 2003 | 2.40255 |
| 2002 | 2.13509 |
| 2001 | 1.90486 |
| 2000 | 1.6524 |
| 1999 | 1.44135 |
| 1998 | 1.40187 |
| 1997 | 1.4435 |
| 1996 | 1.50503 |
| 1995 | 1.61774 |
| 1994 | 1.67419 |
| 1993 | 1.64066 |
| 1992 | 1.65785 |
| 1991 | 1.78085 |
| 1990 | 1.96571 |
| 1989 | 2.21083 |
| 1988 | 2.48928 |
| 1987 | 2.72524 |
| 1986 | 2.92018 |
| 1985 | 3.15035 |
| 1984 | 3.29114 |
| 1983 | 3.29279 |
| 1982 | 3.06402 |
| 1981 | 2.78581 |
| 1980 | 2.66605 |
| 1979 | 2.63076 |
| 1978 | 2.54677 |
| 1977 | 2.35577 |
| 1976 | 2.15107 |
| 1975 | 1.97754 |
| 1974 | 1.89582 |
| 1973 | 1.81185 |
| 1972 | 1.76063 |
| 1971 | 1.72602 |
| 1970 | 1.48837 |
| 1969 | 1.17105 |
| 1968 | 1.04607 |
| 1967 | 1.12758 |
| 1966 | 1.27904 |
| 1965 | 1.41066 |
| 1964 | 1.54776 |
| 1963 | 1.64191 |
| 1962 | 1.48003 |
| 1961 | 1.14537 |
| 1960 | 1.23086 |