데이터 표
| 1980 | -38.6억 | 1996 | -149억 | 2012 | -686억 |
| 1981 | -76.4억 | 1997 | -125억 | 2013 | -517억 |
| 1982 | -76.8억 | 1998 | -187억 | 2014 | -451억 |
| 1983 | -56.5억 | 1999 | -226억 | 2015 | -583억 |
| 1984 | -81.8억 | 2000 | -162억 | 2016 | -438억 |
| 1985 | -84.8억 | 2001 | -85.2억 | 2017 | -396억 |
| 1986 | -91.6억 | 2002 | -162억 | 2018 | -374억 |
| 1987 | -72.2억 | 2003 | -289억 | 2019 | -18.1억 |
| 1988 | -104억 | 2004 | -416억 | 2020 | 213억 |
| 1989 | -185억 | 2005 | -439억 | 2021 | 379억 |
| 1990 | -158억 | 2006 | -461억 | 2022 | 52억 |
| 1991 | -107억 | 2007 | -642억 | 2023 | -72.8억 |
| 1992 | -105억 | 2008 | -514억 | 2024 | -404억 |
| 1993 | -94.1억 | 2009 | -453억 | 2025 | -484억 |
| 1994 | -159억 | 2010 | -465억 | 2026 | -491억 |
| 1995 | -188억 | 2011 | -453억 | | |
데이터 표
| 1980 | -2.4% | 1996 | -3.5% | 2012 | -4.4% |
| 1981 | -4.1% | 1997 | -2.9% | 2013 | -3.4% |
| 1982 | -4.1% | 1998 | -4.9% | 2014 | -3.1% |
| 1983 | -3.1% | 1999 | -5.5% | 2015 | -4.7% |
| 1984 | -4.1% | 2000 | -4% | 2016 | -3.5% |
| 1985 | -4.9% | 2001 | -2.3% | 2017 | -2.9% |
| 1986 | -5% | 2002 | -3.8% | 2018 | -2.6% |
| 1987 | -3.4% | 2003 | -5.3% | 2019 | -0.1% |
| 1988 | -3.8% | 2004 | -6.3% | 2020 | 1.6% |
| 1989 | -6% | 2005 | -6% | 2021 | 2.3% |
| 1990 | -4.9% | 2006 | -5.9% | 2022 | 0.3% |
| 1991 | -3.3% | 2007 | -6.7% | 2023 | -0.4% |
| 1992 | -3.3% | 2008 | -4.9% | 2024 | -2.2% |
| 1993 | -3% | 2009 | -4.5% | 2025 | -2.6% |
| 1994 | -4.5% | 2010 | -3.7% | 2026 | -2.3% |
| 1995 | -5% | 2011 | -3% | | |