데이터 표
| 1986 | 42.2% | 2000 | 39.5% | 2014 | 44.3% |
| 1987 | 37.3% | 2001 | 39.4% | 2015 | 43.8% |
| 1988 | 37.9% | 2002 | 40.5% | 2016 | 42.9% |
| 1989 | 38% | 2003 | 39.7% | 2017 | 42.5% |
| 1990 | 35.3% | 2004 | 40.1% | 2018 | 42.9% |
| 1991 | 38% | 2005 | 40.7% | 2019 | 42.6% |
| 1992 | 43% | 2006 | 41.1% | 2020 | 43.4% |
| 1993 | 38.4% | 2007 | 41.6% | 2021 | 44.5% |
| 1994 | 35.4% | 2008 | 41.7% | 2022 | 43.6% |
| 1995 | 37.5% | 2009 | 40.4% | 2023 | 43.2% |
| 1996 | 38.4% | 2010 | 40.5% | 2024 | 43% |
| 1997 | 38.8% | 2011 | 42.3% | 2025 | 44.1% |
| 1998 | 38.3% | 2012 | 42.6% | 2026 | 43.8% |
| 1999 | 39.6% | 2013 | 44.7% | | |
데이터 표
| 1986 | 119억 | 2000 | 507억 | 2014 | 768억 |
| 1987 | 124억 | 2001 | 535억 | 2015 | 787억 |
| 1988 | 150억 | 2002 | 577억 | 2016 | 800억 |
| 1989 | 178억 | 2003 | 581억 | 2017 | 831억 |
| 1990 | 199억 | 2004 | 610억 | 2018 | 879억 |
| 1991 | 246억 | 2005 | 645억 | 2019 | 914억 |
| 1992 | 313억 | 2006 | 683억 | 2020 | 872억 |
| 1993 | 292억 | 2007 | 731억 | 2021 | 964억 |
| 1994 | 292억 | 2008 | 746억 | 2022 | 1,063억 |
| 1995 | 333억 | 2009 | 708억 | 2023 | 1,167억 |
| 1996 | 362억 | 2010 | 728억 | 2024 | 1,246억 |
| 1997 | 397억 | 2011 | 746억 | 2025 | 1,351억 |
| 1998 | 427억 | 2012 | 719억 | 2026 | 1,413억 |
| 1999 | 473억 | 2013 | 764억 | | |
데이터 표
| 1986 | 52.5% | 2000 | 42.8% | 2014 | 51.7% |
| 1987 | 45.7% | 2001 | 44.1% | 2015 | 48.2% |
| 1988 | 42.2% | 2002 | 44.2% | 2016 | 44.9% |
| 1989 | 41.5% | 2003 | 45.3% | 2017 | 45.5% |
| 1990 | 42.2% | 2004 | 46% | 2018 | 43.3% |
| 1991 | 45.9% | 2005 | 46.7% | 2019 | 42.5% |
| 1992 | 48.2% | 2006 | 45.2% | 2020 | 49.1% |
| 1993 | 46.5% | 2007 | 44.6% | 2021 | 47.3% |
| 1994 | 42.8% | 2008 | 45.5% | 2022 | 43.9% |
| 1995 | 42.6% | 2009 | 50.3% | 2023 | 41.9% |
| 1996 | 43% | 2010 | 51.9% | 2024 | 42.5% |
| 1997 | 42.4% | 2011 | 50% | 2025 | 43.7% |
| 1998 | 42.6% | 2012 | 48.8% | 2026 | 43.9% |
| 1999 | 42.5% | 2013 | 50% | | |
데이터 표
| 1986 | 148억 | 2000 | 550억 | 2014 | 895억 |
| 1987 | 152억 | 2001 | 599억 | 2015 | 865억 |
| 1988 | 168억 | 2002 | 630억 | 2016 | 836억 |
| 1989 | 195억 | 2003 | 662억 | 2017 | 889억 |
| 1990 | 238억 | 2004 | 700억 | 2018 | 887억 |
| 1991 | 297억 | 2005 | 741억 | 2019 | 911억 |
| 1992 | 350억 | 2006 | 751억 | 2020 | 988억 |
| 1993 | 353억 | 2007 | 782억 | 2021 | 1,025억 |
| 1994 | 352억 | 2008 | 815억 | 2022 | 1,070억 |
| 1995 | 379억 | 2009 | 882억 | 2023 | 1,133억 |
| 1996 | 406억 | 2010 | 933억 | 2024 | 1,232억 |
| 1997 | 434억 | 2011 | 882억 | 2025 | 1,342억 |
| 1998 | 475억 | 2012 | 823억 | 2026 | 1,417억 |
| 1999 | 508억 | 2013 | 853억 | | |