| 年份 | 瑙魯 |
|---|---|
| 2023 | - |
| 2022 | 0.10101 |
| 2021 | 0.117915 |
| 2020 | 0.135664 |
| 2019 | 0.137607 |
| 2018 | 0.123467 |
| 2017 | 0.109189 |
| 2016 | 0.102881 |
| 2015 | 0.0876271 |
| 2014 | 0.0806524 |
| 2013 | 0.0916254 |
| 2012 | 0.112507 |
| 2011 | 0.142925 |
| 2010 | 0.143664 |
| 2009 | 0.143761 |
| 2008 | 0.162602 |
| 2007 | 0.17151 |
| 2006 | 0.18018 |
| 2005 | 0.169891 |
| 2004 | 0.131678 |
| 2003 | 0.103219 |
| 2002 | 0.121723 |
| 2001 | 0.1402 |
| 2000 | 0.130756 |
| 1999 | 0.130768 |
| 1998 | 0.140252 |
| 1997 | 0.159176 |
| 1996 | 0.17827 |
| 1995 | 0.197796 |
| 1994 | 0.236451 |
| 1993 | 0.256752 |
| 1992 | 0.211031 |
| 1991 | 0.165724 |
| 1990 | 0.159394 |
| 1989 | 0.172834 |
| 1988 | 0.176202 |
| 1987 | 0.179287 |
| 1986 | 0.192555 |
| 1985 | 0.173329 |
| 1984 | 0.153173 |
| 1983 | 0.156933 |
| 1982 | 0.159381 |
| 1981 | 0.181529 |
| 1980 | 0.193622 |
| 1979 | 0.171468 |
| 1978 | 0.171999 |
| 1977 | 0.185164 |
| 1976 | 0.187727 |
| 1975 | 0.177936 |
| 1974 | 0.167906 |
| 1973 | 0.182017 |
| 1972 | 0.196464 |
| 1971 | 0.223547 |
| 1970 | 0.238964 |
| 1969 | 0.24334 |
| 1968 | 0.276134 |
| 1967 | 0.295699 |
| 1966 | 0.326531 |
| 1965 | 0.364044 |
| 1964 | 0.409716 |
| 1963 | 0.457387 |
| 1962 | 0.474684 |
| 1961 | 0.57377 |
| 1960 | 0.685753 |