| 年份 | 新加坡 |
|---|---|
| 2023 | - |
| 2022 | 4.02615 |
| 2021 | 4.13354 |
| 2020 | 4.21583 |
| 2019 | 4.26954 |
| 2018 | 4.30552 |
| 2017 | 4.34937 |
| 2016 | 4.43754 |
| 2015 | 4.60026 |
| 2014 | 4.82271 |
| 2013 | 5.03247 |
| 2012 | 5.17122 |
| 2011 | 5.24988 |
| 2010 | 5.4072 |
| 2009 | 5.73233 |
| 2008 | 6.07748 |
| 2007 | 6.29762 |
| 2006 | 6.36994 |
| 2005 | 6.39417 |
| 2004 | 6.47376 |
| 2003 | 6.51751 |
| 2002 | 6.44005 |
| 2001 | 6.27651 |
| 2000 | 6.15476 |
| 1999 | 6.17419 |
| 1998 | 6.25092 |
| 1997 | 6.26306 |
| 1996 | 6.18384 |
| 1995 | 6.10656 |
| 1994 | 6.13311 |
| 1993 | 6.22557 |
| 1992 | 6.3245 |
| 1991 | 6.42203 |
| 1990 | 6.56997 |
| 1989 | 6.85116 |
| 1988 | 7.23726 |
| 1987 | 7.66012 |
| 1986 | 8.07885 |
| 1985 | 8.41952 |
| 1984 | 8.66662 |
| 1983 | 8.84895 |
| 1982 | 8.99688 |
| 1981 | 9.23646 |
| 1980 | 9.70917 |
| 1979 | 10.3865 |
| 1978 | 11.062 |
| 1977 | 11.6093 |
| 1976 | 12.0674 |
| 1975 | 12.4777 |
| 1974 | 12.8297 |
| 1973 | 13.1628 |
| 1972 | 13.5117 |
| 1971 | 13.795 |
| 1970 | 13.9235 |
| 1969 | 13.9763 |
| 1968 | 13.9571 |
| 1967 | 13.7789 |
| 1966 | 13.4769 |
| 1965 | 13.1343 |
| 1964 | 12.6948 |
| 1963 | 12.1201 |
| 1962 | 11.5346 |
| 1961 | 10.9736 |
| 1960 | 10.1685 |