| 年份 | 中国香港特别行政区 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | - |
| 2020 | - |
| 2019 | - |
| 2018 | 2.33105 |
| 2017 | 2.26471 |
| 2016 | 2.1841 |
| 2015 | 1.39337 |
| 2014 | 1.57066 |
| 2013 | 1.95985 |
| 2012 | 2.16753 |
| 2011 | 2.40716 |
| 2010 | 2.64721 |
| 2009 | 2.86007 |
| 2008 | 2.89938 |
| 2007 | 2.95225 |
| 2006 | 2.99682 |
| 2005 | 3.42731 |
| 2004 | 4.02652 |
| 2003 | 4.67966 |
| 2002 | 5.07667 |
| 2001 | 5.07263 |
| 2000 | - |
| 1999 | - |
| 1998 | - |
| 1997 | - |
| 1996 | 2.41567 |
| 1995 | 2.72543 |
| 1994 | - |
| 1993 | - |
| 1992 | - |
| 1991 | - |
| 1990 | - |
| 1989 | - |
| 1988 | - |
| 1987 | - |
| 1986 | - |
| 1985 | 5.77151 |
| 1984 | 6.14562 |
| 1983 | 6.31885 |
| 1982 | 6.78505 |
| 1981 | 7.29033 |
| 1980 | 8.33867 |
| 1979 | 16.1602 |
| 1978 | 18.7794 |
| 1977 | 20.226 |
| 1976 | 21.6353 |
| 1975 | 22.1425 |
| 1974 | 22.6979 |
| 1973 | 23.4169 |
| 1972 | 23.4603 |
| 1971 | 23.9715 |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |