데이터 표
| 1980 | 29억 | 1996 | -73억 | 2012 | -244억 |
| 1981 | -6억 | 1997 | -38억 | 2013 | -291억 |
| 1982 | -54억 | 1998 | 40억 | 2014 | -280억 |
| 1983 | -67억 | 1999 | 57.5억 | 2015 | -175억 |
| 1984 | -23억 | 2000 | 79.9억 | 2016 | -170억 |
| 1985 | -21억 | 2001 | 69억 | 2017 | -162억 |
| 1986 | -43억 | 2002 | 78.2억 | 2018 | -306억 |
| 1987 | -24억 | 2003 | 81.1억 | 2019 | -303억 |
| 1988 | -21억 | 2004 | 52.6억 | 2020 | -44.3억 |
| 1989 | -17억 | 2005 | 16억 | 2021 | 35.1억 |
| 1990 | -32억 | 2006 | 95.4억 | 2022 | 132억 |
| 1991 | -44억 | 2007 | 68억 | 2023 | -20.4억 |
| 1992 | -31억 | 2008 | 1.26억 | 2024 | -85.8억 |
| 1993 | -23억 | 2009 | 106억 | 2025 | -14.5억 |
| 1994 | -30억 | 2010 | 53억 | 2026 | -163억 |
| 1995 | -68억 | 2011 | 16.9억 | | |
데이터 표
| 1980 | 2.9% | 1996 | -2.7% | 2012 | -2.7% |
| 1981 | -0.5% | 1997 | -1.5% | 2013 | -3.2% |
| 1982 | -4.7% | 1998 | 3.5% | 2014 | -3.1% |
| 1983 | -6.5% | 1999 | 3.4% | 2015 | -2% |
| 1984 | -2.1% | 2000 | 4.5% | 2016 | -1.8% |
| 1985 | -2% | 2001 | 4% | 2017 | -1.6% |
| 1986 | -4.2% | 2002 | 3.7% | 2018 | -2.9% |
| 1987 | -2.5% | 2003 | 3.2% | 2019 | -2.7% |
| 1988 | -2% | 2004 | 1.9% | 2020 | -0.4% |
| 1989 | -1.4% | 2005 | 0.5% | 2021 | 0.3% |
| 1990 | -2.3% | 2006 | 2.4% | 2022 | 1% |
| 1991 | -2.8% | 2007 | 1.4% | 2023 | -0.1% |
| 1992 | -1.8% | 2008 | 0% | 2024 | -0.6% |
| 1993 | -1.2% | 2009 | 1.8% | 2025 | -0.1% |
| 1994 | -1.4% | 2010 | 0.7% | 2026 | -1.1% |
| 1995 | -2.8% | 2011 | 0.2% | | |