| 年份 | 新加坡 |
|---|---|
| 2023 | - |
| 2022 | 5.74242 |
| 2021 | 6.09769 |
| 2020 | 6.41921 |
| 2019 | 6.66495 |
| 2018 | 6.83036 |
| 2017 | 6.93304 |
| 2016 | 6.99452 |
| 2015 | 7.04641 |
| 2014 | 7.10671 |
| 2013 | 7.13088 |
| 2012 | 7.07953 |
| 2011 | 6.96705 |
| 2010 | 6.87307 |
| 2009 | 6.87647 |
| 2008 | 6.92116 |
| 2007 | 6.8861 |
| 2006 | 6.72646 |
| 2005 | 6.56127 |
| 2004 | 6.54699 |
| 2003 | 6.62165 |
| 2002 | 6.66752 |
| 2001 | 6.67607 |
| 2000 | 6.74595 |
| 1999 | 6.98038 |
| 1998 | 7.30922 |
| 1997 | 7.62292 |
| 1996 | 7.89178 |
| 1995 | 8.13451 |
| 1994 | 8.43867 |
| 1993 | 8.86327 |
| 1992 | 9.40077 |
| 1991 | 10.0195 |
| 1990 | 10.5356 |
| 1989 | 10.7321 |
| 1988 | 10.7405 |
| 1987 | 10.8022 |
| 1986 | 10.9616 |
| 1985 | 11.2256 |
| 1984 | 11.5239 |
| 1983 | 11.7642 |
| 1982 | 11.9416 |
| 1981 | 12.061 |
| 1980 | 12.0788 |
| 1979 | 12.0074 |
| 1978 | 11.8621 |
| 1977 | 11.6059 |
| 1976 | 11.2873 |
| 1975 | 10.9742 |
| 1974 | 10.6787 |
| 1973 | 10.4148 |
| 1972 | 10.2151 |
| 1971 | 9.97082 |
| 1970 | 9.46557 |
| 1969 | 8.71952 |
| 1968 | 8.02203 |
| 1967 | 7.47405 |
| 1966 | 7.15076 |
| 1965 | 7.21881 |
| 1964 | 7.50651 |
| 1963 | 7.77015 |
| 1962 | 7.99147 |
| 1961 | 8.21005 |
| 1960 | 8.4213 |