데이터 표
| 1983 | 28% | 1998 | 31% | 2013 | 31.5% |
| 1984 | 27.9% | 1999 | 31.2% | 2014 | 31.3% |
| 1985 | 27.7% | 2000 | 32.2% | 2015 | 32.5% |
| 1986 | 28.6% | 2001 | 31.4% | 2016 | 32.2% |
| 1987 | 28.5% | 2002 | 31.9% | 2017 | 33% |
| 1988 | 28.8% | 2003 | 31.5% | 2018 | 32.3% |
| 1989 | 28.1% | 2004 | 31.3% | 2019 | 32.6% |
| 1990 | 27.2% | 2005 | 31.3% | 2020 | 33.3% |
| 1991 | 27.2% | 2006 | 30.9% | 2021 | 33.1% |
| 1992 | 27.9% | 2007 | 30.5% | 2022 | 31.6% |
| 1993 | 28.9% | 2008 | 31.5% | 2023 | 31.1% |
| 1994 | 29.4% | 2009 | 31.7% | 2024 | 31.8% |
| 1995 | 30.1% | 2010 | 31.2% | 2025 | 31.7% |
| 1996 | 30.5% | 2011 | 31.6% | 2026 | 31.7% |
| 1997 | 30.2% | 2012 | 31.4% | | |
데이터 표
| 1983 | 683억 | 1998 | 1,379억 | 2013 | 2,103억 |
| 1984 | 727억 | 1999 | 1,416억 | 2014 | 2,126억 |
| 1985 | 766억 | 2000 | 1,533억 | 2015 | 2,205억 |
| 1986 | 832억 | 2001 | 1,539억 | 2016 | 2,215억 |
| 1987 | 858억 | 2002 | 1,560억 | 2017 | 2,299억 |
| 1988 | 921억 | 2003 | 1,554억 | 2018 | 2,345억 |
| 1989 | 970억 | 2004 | 1,588억 | 2019 | 2,389억 |
| 1990 | 1,019억 | 2005 | 1,653억 | 2020 | 2,365억 |
| 1991 | 1,065억 | 2006 | 1,738억 | 2021 | 2,541억 |
| 1992 | 1,114억 | 2007 | 1,828억 | 2022 | 2,591억 |
| 1993 | 1,178억 | 2008 | 1,959억 | 2023 | 2,592억 |
| 1994 | 1,232억 | 2009 | 1,944억 | 2024 | 2,719억 |
| 1995 | 1,277억 | 2010 | 1,984억 | 2025 | 2,748억 |
| 1996 | 1,302억 | 2011 | 2,042억 | 2026 | 2,797억 |
| 1997 | 1,309억 | 2012 | 2,053억 | | |
데이터 표
| 1983 | 28.5% | 1998 | 32.3% | 2013 | 32% |
| 1984 | 28.1% | 1999 | 32.8% | 2014 | 31.5% |
| 1985 | 27.7% | 2000 | 31.9% | 2015 | 31.9% |
| 1986 | 27.6% | 2001 | 31.2% | 2016 | 31.9% |
| 1987 | 27.4% | 2002 | 33.6% | 2017 | 31.9% |
| 1988 | 27.9% | 2003 | 32.8% | 2018 | 31.1% |
| 1989 | 27.3% | 2004 | 32.6% | 2019 | 31.3% |
| 1990 | 27.2% | 2005 | 31.9% | 2020 | 36.3% |
| 1991 | 29% | 2006 | 30.1% | 2021 | 33.4% |
| 1992 | 30.8% | 2007 | 29% | 2022 | 30.5% |
| 1993 | 32% | 2008 | 29.6% | 2023 | 30.9% |
| 1994 | 32% | 2009 | 31.2% | 2024 | 31.3% |
| 1995 | 32% | 2010 | 30.9% | 2025 | 31.2% |
| 1996 | 32.5% | 2011 | 31% | 2026 | 31.5% |
| 1997 | 32.5% | 2012 | 31.1% | | |
데이터 표
| 1983 | 697억 | 1998 | 1,437억 | 2013 | 2,131억 |
| 1984 | 733억 | 1999 | 1,486억 | 2014 | 2,142억 |
| 1985 | 766억 | 2000 | 1,520억 | 2015 | 2,169억 |
| 1986 | 801억 | 2001 | 1,529억 | 2016 | 2,198억 |
| 1987 | 826억 | 2002 | 1,645억 | 2017 | 2,222억 |
| 1988 | 892억 | 2003 | 1,621억 | 2018 | 2,253억 |
| 1989 | 944억 | 2004 | 1,658억 | 2019 | 2,293억 |
| 1990 | 1,021억 | 2005 | 1,686억 | 2020 | 2,575억 |
| 1991 | 1,137억 | 2006 | 1,691억 | 2021 | 2,563억 |
| 1992 | 1,231억 | 2007 | 1,735억 | 2022 | 2,496억 |
| 1993 | 1,304억 | 2008 | 1,840억 | 2023 | 2,582억 |
| 1994 | 1,339억 | 2009 | 1,914억 | 2024 | 2,674억 |
| 1995 | 1,354억 | 2010 | 1,962억 | 2025 | 2,709억 |
| 1996 | 1,386억 | 2011 | 1,999억 | 2026 | 2,778억 |
| 1997 | 1,409억 | 2012 | 2,038억 | | |