| 年份 | 單位:% |
| 含“(E)”其對應值為系統預測,僅供參考。 | |
| 2027(E) | 購買后可見 ? |
| 2026(E) | 購買后可見 ? |
| 2025(E) | 購買后可見 ? |
| 2024 | 購買后可見 ? |
| 2023 | 購買后可見 ? |
| 2022 | 購買后可見 ? |
| 2021 | 購買后可見 ? |
| 2020 | 購買后可見 ? |
| 2019 | 購買后可見 ? |
| 2018 | 購買后可見 ? |
| 2017 | 購買后可見 ? |
| 2016 | 購買后可見 ? |
| 2015 | 購買后可見 ? |
| 2014 | 45.57 |
| 2013 | 48.54 |
| 2012 | 49.97 |
| 2011 | 52.04 |
| 2010 | 57.41 |
| 2009 | 52.29 |
| 2008 | 48.60 |
| 2007 | 50.05 |
| 2006 | 49.72 |
| 2005 | 50.51 |
| 2004 | 51.82 |
| 2003 | 57.95 |
| 2002 | 49.40 |
| 2001 | 46.39 |
| 2000 | 59.62 |
| 1999 | 56.92 |
| 1998 | 59.74 |
| 1997 | 59.05 |
| 1996 | 62.21 |
| 1995 | 62.80 |
| 1994 | 66.25 |
| 1993 | 64.39 |
| 1992 | 63.19 |
| 1991 | 61.07 |
| 1990 | 39.76 |
| 1989 | 43.95 |
| 1988 | 61.29 |
| 1987 | 54.99 |
| 1986 | 53.21 |
| 1985 | 61.18 |
| 1984 | 42.68 |
| 1983 | 43.49 |
| 1982 | 28.80 |
| 1981 | 17.70 |
| 1980 | 85.63 |
| 1979 | 53.57 |
| 1978 | 61.81 |
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