데이터 표
| 1985 | 39.1% | 1999 | 38.1% | 2013 | 37.3% |
| 1986 | 41.5% | 2000 | 38.4% | 2014 | 37.3% |
| 1987 | 42.6% | 2001 | 38.5% | 2015 | 37.5% |
| 1988 | 44.2% | 2002 | 39.3% | 2016 | 37.4% |
| 1989 | 45.6% | 2003 | 40.3% | 2017 | 36.9% |
| 1990 | 46.8% | 2004 | 40.6% | 2018 | 37.4% |
| 1991 | 46.8% | 2005 | 42.2% | 2019 | 36.3% |
| 1992 | 46.2% | 2006 | 42.4% | 2020 | 37.7% |
| 1993 | 45.2% | 2007 | 40.6% | 2021 | 38.5% |
| 1994 | 44.7% | 2008 | 39.9% | 2022 | 37.7% |
| 1995 | 45.3% | 2009 | 38.5% | 2023 | 37.8% |
| 1996 | 42.4% | 2010 | 37.4% | 2024 | 38.5% |
| 1997 | 40.5% | 2011 | 37.4% | 2025 | 37.7% |
| 1998 | 39.6% | 2012 | 37.5% | 2026 | 37.2% |
데이터 표
| 1985 | 177억 | 1999 | 424억 | 2013 | 850억 |
| 1986 | 217억 | 2000 | 455억 | 2014 | 898억 |
| 1987 | 266억 | 2001 | 486억 | 2015 | 945억 |
| 1988 | 306억 | 2002 | 525억 | 2016 | 997억 |
| 1989 | 336억 | 2003 | 571억 | 2017 | 1,058억 |
| 1990 | 358억 | 2004 | 621억 | 2018 | 1,130억 |
| 1991 | 352억 | 2005 | 678억 | 2019 | 1,162억 |
| 1992 | 357억 | 2006 | 717억 | 2020 | 1,222억 |
| 1993 | 375억 | 2007 | 744억 | 2021 | 1,357억 |
| 1994 | 399억 | 2008 | 758억 | 2022 | 1,454억 |
| 1995 | 429억 | 2009 | 740억 | 2023 | 1,560억 |
| 1996 | 426억 | 2010 | 755억 | 2024 | 1,646억 |
| 1997 | 421억 | 2011 | 789억 | 2025 | 1,677억 |
| 1998 | 419억 | 2012 | 811억 | 2026 | 1,737억 |
데이터 표
| 1985 | 46.1% | 1999 | 39.2% | 2013 | 38.6% |
| 1986 | 46.8% | 2000 | 38.2% | 2014 | 37.6% |
| 1987 | 46% | 2001 | 37.2% | 2015 | 37.2% |
| 1988 | 46.1% | 2002 | 36.7% | 2016 | 36.4% |
| 1989 | 47.7% | 2003 | 36.6% | 2017 | 35.6% |
| 1990 | 49.5% | 2004 | 36.1% | 2018 | 36.1% |
| 1991 | 52.9% | 2005 | 37.1% | 2019 | 38.7% |
| 1992 | 52.4% | 2006 | 37.8% | 2020 | 41.9% |
| 1993 | 46.7% | 2007 | 37% | 2021 | 41.8% |
| 1994 | 42.7% | 2008 | 38.4% | 2022 | 41.7% |
| 1995 | 41.6% | 2009 | 40.3% | 2023 | 41% |
| 1996 | 39.8% | 2010 | 42.9% | 2024 | 41.7% |
| 1997 | 39.3% | 2011 | 42.3% | 2025 | 41.6% |
| 1998 | 40.1% | 2012 | 39.7% | 2026 | 41.2% |
데이터 표
| 1985 | 208억 | 1999 | 436억 | 2013 | 880억 |
| 1986 | 245억 | 2000 | 453억 | 2014 | 906억 |
| 1987 | 287억 | 2001 | 470억 | 2015 | 936억 |
| 1988 | 319억 | 2002 | 491억 | 2016 | 971억 |
| 1989 | 352억 | 2003 | 518억 | 2017 | 1,019억 |
| 1990 | 379억 | 2004 | 552억 | 2018 | 1,090억 |
| 1991 | 398억 | 2005 | 596억 | 2019 | 1,240억 |
| 1992 | 405억 | 2006 | 639억 | 2020 | 1,359억 |
| 1993 | 387억 | 2007 | 678억 | 2021 | 1,475억 |
| 1994 | 381억 | 2008 | 730억 | 2022 | 1,607억 |
| 1995 | 394억 | 2009 | 775억 | 2023 | 1,693억 |
| 1996 | 400억 | 2010 | 866억 | 2024 | 1,783억 |
| 1997 | 408억 | 2011 | 894억 | 2025 | 1,849억 |
| 1998 | 424억 | 2012 | 858억 | 2026 | 1,920억 |