| 年份 | 新加坡 |
|---|---|
| 2023 | - |
| 2022 | 4.34287 |
| 2021 | 4.43985 |
| 2020 | 4.62398 |
| 2019 | 4.90524 |
| 2018 | 5.26142 |
| 2017 | 5.63783 |
| 2016 | 5.99362 |
| 2015 | 6.26283 |
| 2014 | 6.41069 |
| 2013 | 6.53225 |
| 2012 | 6.725 |
| 2011 | 6.97495 |
| 2010 | 7.14577 |
| 2009 | 7.11612 |
| 2008 | 6.9742 |
| 2007 | 6.86818 |
| 2006 | 6.83892 |
| 2005 | 6.79928 |
| 2004 | 6.65472 |
| 2003 | 6.49734 |
| 2002 | 6.42636 |
| 2001 | 6.43657 |
| 2000 | 6.45402 |
| 1999 | 6.39126 |
| 1998 | 6.3039 |
| 1997 | 6.29582 |
| 1996 | 6.39712 |
| 1995 | 6.59706 |
| 1994 | 6.84057 |
| 1993 | 7.08405 |
| 1992 | 7.34943 |
| 1991 | 7.68724 |
| 1990 | 8.12407 |
| 1989 | 8.59119 |
| 1988 | 8.96691 |
| 1987 | 9.1935 |
| 1986 | 9.26576 |
| 1985 | 9.34569 |
| 1984 | 9.68822 |
| 1983 | 10.2386 |
| 1982 | 10.7893 |
| 1981 | 11.2565 |
| 1980 | 11.6531 |
| 1979 | 11.9808 |
| 1978 | 12.2547 |
| 1977 | 12.5143 |
| 1976 | 12.7218 |
| 1975 | 12.7987 |
| 1974 | 12.7779 |
| 1973 | 12.6944 |
| 1972 | 12.5025 |
| 1971 | 12.2213 |
| 1970 | 11.9263 |
| 1969 | 11.5975 |
| 1968 | 11.2147 |
| 1967 | 10.8443 |
| 1966 | 10.3797 |
| 1965 | 9.75061 |
| 1964 | 9.11901 |
| 1963 | 8.63023 |
| 1962 | 8.30574 |
| 1961 | 8.19735 |
| 1960 | 8.31765 |