데이터 표
| 1980 | -3.67억 | 1996 | -5.61억 | 2012 | -67.9억 |
| 1981 | -4.07억 | 1997 | -4.38억 | 2013 | -68.8억 |
| 1982 | -4.97억 | 1998 | -7.74억 | 2014 | -64.4억 |
| 1983 | -4.15억 | 1999 | -8.55억 | 2015 | -59.7억 |
| 1984 | -3.08억 | 2000 | -6.97억 | 2016 | -38.5억 |
| 1985 | -3.01억 | 2001 | -6.49억 | 2017 | -25.9억 |
| 1986 | -4.09억 | 2002 | -8.69억 | 2018 | -44.3억 |
| 1987 | -3.89억 | 2003 | -8.17억 | 2019 | -25억 |
| 1988 | -3.59억 | 2004 | -4.79억 | 2020 | -37.8억 |
| 1989 | -4.6억 | 2005 | -7.61억 | 2021 | -34.3억 |
| 1990 | -5.17억 | 2006 | -7.55억 | 2022 | -63.7억 |
| 1991 | -5.54억 | 2007 | -7.86억 | 2023 | -22.1억 |
| 1992 | -5.01억 | 2008 | -11.5억 | 2024 | -24.9억 |
| 1993 | -6.09억 | 2009 | -12.3억 | 2025 | -31.8억 |
| 1994 | -6.48억 | 2010 | -16.8억 | 2026 | -100억 |
| 1995 | -4.64억 | 2011 | -33.3억 | | |
데이터 표
| 1980 | -8% | 1996 | -13.9% | 2012 | -40.7% |
| 1981 | -11.4% | 1997 | -9% | 2013 | -40% |
| 1982 | -13.6% | 1998 | -13.9% | 2014 | -35.8% |
| 1983 | -12.7% | 1999 | -13.6% | 2015 | -36.8% |
| 1984 | -9% | 2000 | -11.8% | 2016 | -31.9% |
| 1985 | -6.7% | 2001 | -11.5% | 2017 | -19.5% |
| 1986 | -7.7% | 2002 | -14.6% | 2018 | -29.5% |
| 1987 | -16.2% | 2003 | -12.4% | 2019 | -16.1% |
| 1988 | -17% | 2004 | -6% | 2020 | -26.5% |
| 1989 | -20.9% | 2005 | -8.6% | 2021 | -21.2% |
| 1990 | -14.7% | 2006 | -7.9% | 2022 | -33.7% |
| 1991 | -14.4% | 2007 | -7.3% | 2023 | -10.6% |
| 1992 | -17.9% | 2008 | -8.9% | 2024 | -11% |
| 1993 | -21.1% | 2009 | -10% | 2025 | -14.2% |
| 1994 | -21.9% | 2010 | -14.7% | 2026 | -43% |
| 1995 | -15.2% | 2011 | -22.8% | | |