Tabella dei dati
| 1990 | 13,2% | 2003 | 20,8% | 2016 | 51,1% |
| 1991 | 15,3% | 2004 | 21,6% | 2017 | 54,6% |
| 1992 | 17,9% | 2005 | 23% | 2018 | 61,5% |
| 1993 | 19,7% | 2006 | 23,2% | 2019 | 60,3% |
| 1994 | 20,9% | 2007 | 23,5% | 2020 | 71,9% |
| 1995 | 21% | 2008 | 25,3% | 2021 | 90,7% |
| 1996 | 20,7% | 2009 | 30,1% | 2022 | 84,7% |
| 1997 | 21,5% | 2010 | 33,9% | 2023 | 78,3% |
| 1998 | 20,8% | 2011 | 35,3% | 2024 | 73,8% |
| 1999 | 19,8% | 2012 | 37,6% | 2025 | 73,8% |
| 2000 | 19,2% | 2013 | 44,2% | 2026 | 71,9% |
| 2001 | 18,5% | 2014 | 47,7% | | |
| 2002 | 19,4% | 2015 | 49,9% | | |
Tabella dei dati
| 1990 | 690 mln | 2003 | 1,85 mld | 2016 | 6,07 mld |
| 1991 | 789 mln | 2004 | 1,94 mld | 2017 | 6,65 mld |
| 1992 | 916 mln | 2005 | 2,17 mld | 2018 | 7,77 mld |
| 1993 | 1,01 mld | 2006 | 2,32 mld | 2019 | 7,87 mld |
| 1994 | 1,1 mld | 2007 | 2,44 mld | 2020 | 8,48 mld |
| 1995 | 1,16 mld | 2008 | 2,68 mld | 2021 | 10,2 mld |
| 1996 | 1,2 mld | 2009 | 3,09 mld | 2022 | 11 mld |
| 1997 | 1,32 mld | 2010 | 3,4 mld | 2023 | 11,4 mld |
| 1998 | 1,37 mld | 2011 | 3,56 mld | 2024 | 11,5 mld |
| 1999 | 1,43 mld | 2012 | 3,91 mld | 2025 | 11,9 mld |
| 2000 | 1,51 mld | 2013 | 4,69 mld | 2026 | 12,1 mld |
| 2001 | 1,52 mld | 2014 | 5,16 mld | | |
| 2002 | 1,67 mld | 2015 | 5,74 mld | | |