| 年份 | 新加坡 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 0.139276 |
| 2020 | 0.139276 |
| 2019 | 0.139665 |
| 2018 | 0.140056 |
| 2017 | 0.140449 |
| 2016 | 0.141044 |
| 2015 | 0.141044 |
| 2014 | 0.141044 |
| 2013 | 0.141443 |
| 2012 | 0.141643 |
| 2011 | 0.142045 |
| 2010 | 0.14245 |
| 2009 | 0.142857 |
| 2008 | 0.142857 |
| 2007 | 0.143885 |
| 2006 | 0.144092 |
| 2005 | 0.145138 |
| 2004 | 0.145138 |
| 2003 | 0.291121 |
| 2002 | 0.296296 |
| 2001 | 0.298507 |
| 2000 | 0.298507 |
| 1999 | 0.298507 |
| 1998 | 0.298507 |
| 1997 | 0.298507 |
| 1996 | 0.298507 |
| 1995 | 0.298507 |
| 1994 | 0.298507 |
| 1993 | 0.298507 |
| 1992 | 0.298507 |
| 1991 | 0.298507 |
| 1990 | 1.49254 |
| 1989 | 1.49254 |
| 1988 | 1.49254 |
| 1987 | 1.49254 |
| 1986 | 2.98507 |
| 1985 | 4.47761 |
| 1984 | 5.97015 |
| 1983 | 5.97015 |
| 1982 | 5.97015 |
| 1981 | 7.46269 |
| 1980 | 8.95522 |
| 1979 | 8.95522 |
| 1978 | 8.95522 |
| 1977 | 8.95522 |
| 1976 | 8.95522 |
| 1975 | 8.95522 |
| 1974 | 10.4478 |
| 1973 | 11.9403 |
| 1972 | 11.9403 |
| 1971 | 11.9403 |
| 1970 | 11.9403 |
| 1969 | 13.4328 |
| 1968 | 13.4328 |
| 1967 | 13.4328 |
| 1966 | 13.4328 |
| 1965 | 13.4328 |
| 1964 | 13.4328 |
| 1963 | 13.4328 |
| 1962 | 14.9254 |
| 1961 | 16.4179 |
| 1960 | - |