| 年份 | 中国香港特别行政区 |
|---|---|
| 2023 | - |
| 2022 | 5.0112 |
| 2021 | 4.78602 |
| 2020 | 4.42531 |
| 2019 | 3.99025 |
| 2018 | 3.56987 |
| 2017 | 3.16705 |
| 2016 | 2.8345 |
| 2015 | 2.67246 |
| 2014 | 2.65335 |
| 2013 | 2.71963 |
| 2012 | 2.85875 |
| 2011 | 3.01827 |
| 2010 | 3.1386 |
| 2009 | 3.21127 |
| 2008 | 3.26095 |
| 2007 | 3.28772 |
| 2006 | 3.27806 |
| 2005 | 3.26536 |
| 2004 | 3.25526 |
| 2003 | 3.21718 |
| 2002 | 3.17986 |
| 2001 | 3.16269 |
| 2000 | 3.12533 |
| 1999 | 3.08313 |
| 1998 | 3.06184 |
| 1997 | 3.03949 |
| 1996 | 3.00243 |
| 1995 | 2.8971 |
| 1994 | 2.74693 |
| 1993 | 2.61079 |
| 1992 | 2.49096 |
| 1991 | 2.41658 |
| 1990 | 2.40103 |
| 1989 | 2.43082 |
| 1988 | 2.48596 |
| 1987 | 2.53878 |
| 1986 | 2.55061 |
| 1985 | 2.51868 |
| 1984 | 2.46983 |
| 1983 | 2.41693 |
| 1982 | 2.36197 |
| 1981 | 2.28838 |
| 1980 | 2.17851 |
| 1979 | 2.08889 |
| 1978 | 2.0345 |
| 1977 | 1.98059 |
| 1976 | 1.9385 |
| 1975 | 1.91208 |
| 1974 | 1.89476 |
| 1973 | 1.87724 |
| 1972 | 1.85518 |
| 1971 | 1.81661 |
| 1970 | 1.74161 |
| 1969 | 1.64223 |
| 1968 | 1.55098 |
| 1967 | 1.47995 |
| 1966 | 1.42249 |
| 1965 | 1.37592 |
| 1964 | 1.33642 |
| 1963 | 1.29965 |
| 1962 | 1.25809 |
| 1961 | 1.20994 |
| 1960 | 1.13895 |