| 年份 | 新加坡 |
|---|---|
| 2023 | - |
| 2022 | 1.72264 |
| 2021 | 1.6665 |
| 2020 | 1.63236 |
| 2019 | 1.57965 |
| 2018 | 1.50403 |
| 2017 | 1.41738 |
| 2016 | 1.32837 |
| 2015 | 1.24872 |
| 2014 | 1.1814 |
| 2013 | 1.12304 |
| 2012 | 1.07306 |
| 2011 | 1.03141 |
| 2010 | 0.99887 |
| 2009 | 0.975336 |
| 2008 | 0.957021 |
| 2007 | 0.941867 |
| 2006 | 0.931743 |
| 2005 | 0.92004 |
| 2004 | 0.895297 |
| 2003 | 0.863428 |
| 2002 | 0.832428 |
| 2001 | 0.802944 |
| 2000 | 0.781023 |
| 1999 | 0.7719 |
| 1998 | 0.772111 |
| 1997 | 0.778608 |
| 1996 | 0.791869 |
| 1995 | 0.799864 |
| 1994 | 0.788342 |
| 1993 | 0.764217 |
| 1992 | 0.737076 |
| 1991 | 0.707145 |
| 1990 | 0.670233 |
| 1989 | 0.621476 |
| 1988 | 0.56554 |
| 1987 | 0.508927 |
| 1986 | 0.455631 |
| 1985 | 0.410861 |
| 1984 | 0.379143 |
| 1983 | 0.354877 |
| 1982 | 0.330634 |
| 1981 | 0.306144 |
| 1980 | 0.279211 |
| 1979 | 0.253878 |
| 1978 | 0.2331 |
| 1977 | 0.215977 |
| 1976 | 0.204357 |
| 1975 | 0.195602 |
| 1974 | 0.18817 |
| 1973 | 0.181674 |
| 1972 | 0.176309 |
| 1971 | 0.173745 |
| 1970 | 0.172392 |
| 1969 | 0.157499 |
| 1968 | 0.131925 |
| 1967 | 0.111421 |
| 1966 | 0.0950812 |
| 1965 | 0.0826315 |
| 1964 | 0.0729275 |
| 1963 | 0.0650356 |
| 1962 | 0.0590456 |
| 1961 | 0.0551901 |
| 1960 | 0.0547099 |