| 年份 | 新加坡 |
|---|---|
| 2023 | - |
| 2022 | 2.32432 |
| 2021 | 2.13967 |
| 2020 | 1.97638 |
| 2019 | 1.85474 |
| 2018 | 1.79738 |
| 2017 | 1.78945 |
| 2016 | 1.80614 |
| 2015 | 1.82654 |
| 2014 | 1.83983 |
| 2013 | 1.83296 |
| 2012 | 1.79347 |
| 2011 | 1.73477 |
| 2010 | 1.6804 |
| 2009 | 1.64157 |
| 2008 | 1.61497 |
| 2007 | 1.59386 |
| 2006 | 1.57418 |
| 2005 | 1.54663 |
| 2004 | 1.50538 |
| 2003 | 1.45291 |
| 2002 | 1.39049 |
| 2001 | 1.32035 |
| 2000 | 1.25122 |
| 1999 | 1.20034 |
| 1998 | 1.17755 |
| 1997 | 1.17616 |
| 1996 | 1.18686 |
| 1995 | 1.20157 |
| 1994 | 1.21445 |
| 1993 | 1.2243 |
| 1992 | 1.23232 |
| 1991 | 1.24073 |
| 1990 | 1.2475 |
| 1989 | 1.24728 |
| 1988 | 1.23935 |
| 1987 | 1.22242 |
| 1986 | 1.19294 |
| 1985 | 1.15037 |
| 1984 | 1.09912 |
| 1983 | 1.04719 |
| 1982 | 1.00314 |
| 1981 | 0.975071 |
| 1980 | 0.951559 |
| 1979 | 0.91722 |
| 1978 | 0.874887 |
| 1977 | 0.831418 |
| 1976 | 0.788422 |
| 1975 | 0.747801 |
| 1974 | 0.712875 |
| 1973 | 0.679316 |
| 1972 | 0.651521 |
| 1971 | 0.633565 |
| 1970 | 0.620125 |
| 1969 | 0.590804 |
| 1968 | 0.543937 |
| 1967 | 0.503305 |
| 1966 | 0.471994 |
| 1965 | 0.446681 |
| 1964 | 0.425335 |
| 1963 | 0.407351 |
| 1962 | 0.392549 |
| 1961 | 0.379964 |
| 1960 | 0.3666 |