| 年份 | 新加坡 |
|---|---|
| 2023 | - |
| 2022 | 3.87722 |
| 2021 | 3.96503 |
| 2020 | 4.02257 |
| 2019 | 4.04438 |
| 2018 | 4.05168 |
| 2017 | 4.08694 |
| 2016 | 4.20336 |
| 2015 | 4.4485 |
| 2014 | 4.78504 |
| 2013 | 5.07782 |
| 2012 | 5.22773 |
| 2011 | 5.24859 |
| 2010 | 5.38077 |
| 2009 | 5.80562 |
| 2008 | 6.29594 |
| 2007 | 6.60488 |
| 2006 | 6.69263 |
| 2005 | 6.69456 |
| 2004 | 6.76484 |
| 2003 | 6.79741 |
| 2002 | 6.68075 |
| 2001 | 6.46189 |
| 2000 | 6.33079 |
| 1999 | 6.41999 |
| 1998 | 6.58141 |
| 1997 | 6.63425 |
| 1996 | 6.54753 |
| 1995 | 6.4591 |
| 1994 | 6.51925 |
| 1993 | 6.66445 |
| 1992 | 6.79797 |
| 1991 | 6.91009 |
| 1990 | 7.06023 |
| 1989 | 7.33568 |
| 1988 | 7.70264 |
| 1987 | 8.09067 |
| 1986 | 8.46443 |
| 1985 | 8.75425 |
| 1984 | 8.94563 |
| 1983 | 9.08168 |
| 1982 | 9.21006 |
| 1981 | 9.46414 |
| 1980 | 9.95986 |
| 1979 | 10.6166 |
| 1978 | 11.2554 |
| 1977 | 11.794 |
| 1976 | 12.2578 |
| 1975 | 12.706 |
| 1974 | 13.0998 |
| 1973 | 13.448 |
| 1972 | 13.7948 |
| 1971 | 14.052 |
| 1970 | 14.1153 |
| 1969 | 14.1255 |
| 1968 | 14.1226 |
| 1967 | 13.9679 |
| 1966 | 13.7041 |
| 1965 | 13.4048 |
| 1964 | 12.9991 |
| 1963 | 12.454 |
| 1962 | 11.8997 |
| 1961 | 11.3735 |
| 1960 | 10.6569 |