Tabella dei dati
| 1987 | 1,32 mld | 2006 | 1,29 mld | 2017 | 6,4 mld |
| 1988 | 1,31 mld | 2007 | 1,78 mld | 2018 | 6,89 mld |
| 1989 | 459 mln | 2008 | 2,05 mld | 2019 | 7,26 mld |
| 1990 | 512 mln | 2009 | 2,89 mld | 2020 | 7,16 mld |
| 1991 | 428 mln | 2010 | 2,71 mld | 2021 | 7,53 mld |
| 1992 | 333 mln | 2011 | 3,03 mld | 2022 | 7,09 mld |
| 1993 | 298 mln | 2012 | 4,74 mld | 2023 | 7,96 mld |
| 1994 | 431 mln | 2013 | 5,52 mld | 2024 | 8,59 mld |
| 2003 | 842 mln | 2014 | 5,63 mld | 2025 | 10,5 mld |
| 2004 | 915 mln | 2015 | 6,11 mld | | |
| 2005 | 1,03 mld | 2016 | 6,33 mld | | |
Tabella dei dati
| 1987 | 4% | 2006 | 1,9% | 2017 | 2,3% |
| 1988 | 7,1% | 2007 | 2,3% | 2018 | 2,2% |
| 1989 | 7,3% | 2008 | 2,1% | 2019 | 2,2% |
| 1990 | 7,9% | 2009 | 2,7% | 2020 | 2,1% |
| 1991 | 5,6% | 2010 | 1,8% | 2021 | 2,1% |
| 1992 | 3,4% | 2011 | 1,8% | 2022 | 1,7% |
| 1993 | 2,3% | 2012 | 2,4% | 2023 | 1,8% |
| 1994 | 2,6% | 2013 | 2,6% | 2024 | 1,8% |
| 2003 | 2,1% | 2014 | 2,4% | 2025 | 2,2% |
| 2004 | 2% | 2015 | 2,6% | | |
| 2005 | 1,8% | 2016 | 2,5% | | |