| 年份 | 新加坡 |
|---|---|
| 2023 | - |
| 2022 | 8.26032 |
| 2021 | 8.37586 |
| 2020 | 8.44684 |
| 2019 | 8.47762 |
| 2018 | 8.48442 |
| 2017 | 8.48372 |
| 2016 | 8.50605 |
| 2015 | 8.57019 |
| 2014 | 8.69226 |
| 2013 | 8.87557 |
| 2012 | 9.0962 |
| 2011 | 9.31762 |
| 2010 | 9.5088 |
| 2009 | 9.62538 |
| 2008 | 9.67742 |
| 2007 | 9.69568 |
| 2006 | 9.67262 |
| 2005 | 9.58669 |
| 2004 | 9.44473 |
| 2003 | 9.26606 |
| 2002 | 9.05884 |
| 2001 | 8.85471 |
| 2000 | 8.63348 |
| 1999 | 8.36489 |
| 1998 | 8.07543 |
| 1997 | 7.77486 |
| 1996 | 7.44467 |
| 1995 | 7.06823 |
| 1994 | 6.60582 |
| 1993 | 6.07018 |
| 1992 | 5.53915 |
| 1991 | 5.05555 |
| 1990 | 4.64229 |
| 1989 | 4.3943 |
| 1988 | 4.36053 |
| 1987 | 4.47985 |
| 1986 | 4.67391 |
| 1985 | 4.84233 |
| 1984 | 4.87284 |
| 1983 | 4.7689 |
| 1982 | 4.64948 |
| 1981 | 4.58132 |
| 1980 | 4.54406 |
| 1979 | 4.5369 |
| 1978 | 4.55739 |
| 1977 | 4.56074 |
| 1976 | 4.53082 |
| 1975 | 4.46536 |
| 1974 | 4.3688 |
| 1973 | 4.27334 |
| 1972 | 4.20391 |
| 1971 | 4.15955 |
| 1970 | 4.14156 |
| 1969 | 4.16144 |
| 1968 | 4.20699 |
| 1967 | 4.26773 |
| 1966 | 4.34858 |
| 1965 | 4.42444 |
| 1964 | 4.50587 |
| 1963 | 4.61117 |
| 1962 | 4.71052 |
| 1961 | 4.79338 |
| 1960 | 4.88729 |