| 年份 | 新加坡 |
|---|---|
| 2023 | - |
| 2022 | 8.1635 |
| 2021 | 8.15478 |
| 2020 | 8.18555 |
| 2019 | 8.29351 |
| 2018 | 8.46975 |
| 2017 | 8.6725 |
| 2016 | 8.87183 |
| 2015 | 9.03516 |
| 2014 | 9.11719 |
| 2013 | 9.13019 |
| 2012 | 9.10308 |
| 2011 | 9.02331 |
| 2010 | 8.87768 |
| 2009 | 8.69688 |
| 2008 | 8.50328 |
| 2007 | 8.29062 |
| 2006 | 8.07749 |
| 2005 | 7.85615 |
| 2004 | 7.62642 |
| 2003 | 7.40199 |
| 2002 | 7.1691 |
| 2001 | 6.90749 |
| 2000 | 6.58774 |
| 1999 | 6.17604 |
| 1998 | 5.69945 |
| 1997 | 5.23247 |
| 1996 | 4.81432 |
| 1995 | 4.4359 |
| 1994 | 4.13442 |
| 1993 | 3.97066 |
| 1992 | 3.92479 |
| 1991 | 3.93439 |
| 1990 | 3.98137 |
| 1989 | 4.06778 |
| 1988 | 4.12998 |
| 1987 | 4.11432 |
| 1986 | 4.05543 |
| 1985 | 3.99658 |
| 1984 | 3.96596 |
| 1983 | 3.98699 |
| 1982 | 4.0374 |
| 1981 | 4.07115 |
| 1980 | 4.04342 |
| 1979 | 3.95582 |
| 1978 | 3.85616 |
| 1977 | 3.77177 |
| 1976 | 3.7124 |
| 1975 | 3.67986 |
| 1974 | 3.66958 |
| 1973 | 3.66757 |
| 1972 | 3.66687 |
| 1971 | 3.65885 |
| 1970 | 3.6322 |
| 1969 | 3.63609 |
| 1968 | 3.6878 |
| 1967 | 3.75222 |
| 1966 | 3.82702 |
| 1965 | 3.88878 |
| 1964 | 3.91801 |
| 1963 | 3.91324 |
| 1962 | 3.8791 |
| 1961 | 3.83148 |
| 1960 | 3.79787 |