Tabella dei dati
| 1992 | 24,9% | 2004 | 23,7% | 2016 | 26,4% |
| 1993 | 24,8% | 2005 | 22,9% | 2017 | 25,8% |
| 1994 | 24,7% | 2006 | 24,6% | 2018 | 27,7% |
| 1995 | 24,3% | 2007 | 23,9% | 2019 | 27,1% |
| 1996 | 23,8% | 2008 | 24,4% | 2020 | 24,4% |
| 1997 | 24,7% | 2009 | 23,4% | 2021 | 21,5% |
| 1998 | 33,1% | 2010 | 24,3% | 2022 | 21,6% |
| 1999 | 25,8% | 2011 | 25,8% | 2023 | 23% |
| 2000 | 22,8% | 2012 | 25,3% | 2024 | 27,4% |
| 2001 | 22,5% | 2013 | 25,8% | 2025 | 29,1% |
| 2002 | 24,4% | 2014 | 26,7% | 2026 | 28,2% |
| 2003 | 23,3% | 2015 | 26,7% | | |
Tabella dei dati
| 1992 | 591 mln | 2004 | 1,18 mld | 2016 | 2,67 mld |
| 1993 | 653 mln | 2005 | 1,22 mld | 2017 | 2,78 mld |
| 1994 | 697 mln | 2006 | 1,4 mld | 2018 | 3,16 mld |
| 1995 | 718 mln | 2007 | 1,41 mld | 2019 | 3,14 mld |
| 1996 | 746 mln | 2008 | 1,47 mld | 2020 | 2,47 mld |
| 1997 | 806 mln | 2009 | 1,43 mld | 2021 | 1,91 mld |
| 1998 | 1,14 mld | 2010 | 1,54 mld | 2022 | 2,16 mld |
| 1999 | 1,01 mld | 2011 | 1,8 mld | 2023 | 2,71 mld |
| 2000 | 912 mln | 2012 | 1,91 mld | 2024 | 3,57 mld |
| 2001 | 901 mln | 2013 | 2,09 mld | 2025 | 3,97 mld |
| 2002 | 1,04 mld | 2014 | 2,36 mld | 2026 | 3,99 mld |
| 2003 | 1,07 mld | 2015 | 2,55 mld | | |
Tabella dei dati
| 1992 | 27,1% | 2004 | 24,7% | 2016 | 32,1% |
| 1993 | 26,7% | 2005 | 24% | 2017 | 28,1% |
| 1994 | 24,9% | 2006 | 25,4% | 2018 | 32,5% |
| 1995 | 23,5% | 2007 | 23,5% | 2019 | 30,7% |
| 1996 | 27,2% | 2008 | 22,8% | 2020 | 32,7% |
| 1997 | 29,2% | 2009 | 26,2% | 2021 | 35,8% |
| 1998 | 27,7% | 2010 | 25,5% | 2022 | 33,9% |
| 1999 | 24,6% | 2011 | 26,5% | 2023 | 30,2% |
| 2000 | 24,2% | 2012 | 26% | 2024 | 30,8% |
| 2001 | 27% | 2013 | 25,9% | 2025 | 31,5% |
| 2002 | 28,1% | 2014 | 30,2% | 2026 | 34,6% |
| 2003 | 26,7% | 2015 | 30,6% | | |
Tabella dei dati
| 1992 | 644 mln | 2004 | 1,23 mld | 2016 | 3,25 mld |
| 1993 | 703 mln | 2005 | 1,29 mld | 2017 | 3,03 mld |
| 1994 | 703 mln | 2006 | 1,45 mld | 2018 | 3,71 mld |
| 1995 | 695 mln | 2007 | 1,38 mld | 2019 | 3,56 mld |
| 1996 | 854 mln | 2008 | 1,38 mld | 2020 | 3,32 mld |
| 1997 | 953 mln | 2009 | 1,59 mld | 2021 | 3,16 mld |
| 1998 | 955 mln | 2010 | 1,62 mld | 2022 | 3,39 mld |
| 1999 | 960 mln | 2011 | 1,85 mld | 2023 | 3,55 mld |
| 2000 | 965 mln | 2012 | 1,96 mld | 2024 | 4,02 mld |
| 2001 | 1,08 mld | 2013 | 2,1 mld | 2025 | 4,31 mld |
| 2002 | 1,2 mld | 2014 | 2,67 mld | 2026 | 4,9 mld |
| 2003 | 1,23 mld | 2015 | 2,93 mld | | |