| 1990,TOTAL,3.7 |
| 1990,m,1.0 |
| 1990,v,6.8 |
| 1991,TOTAL,6.1 |
| 1991,m,1.3 |
| 1991,v,11.8 |
| 1992,TOTAL,9.4 |
| 1992,m,2.4 |
| 1992,v,17.7 |
| 1993,TOTAL,11.8 |
| 1993,m,3.2 |
| 1993,v,22.0 |
| 1994,TOTAL,14.2 |
| 1994,m,4.8 |
| 1994,v,25.4 |
| 1995,TOTAL,18.2 |
| 1995,m,6.9 |
| 1995,v,31.8 |
| 1996,TOTAL,18.8 |
| 1996,m,6.9 |
| 1996,v,32.9 |
| 1997,TOTAL,14.0 |
| 1997,m,4.7 |
| 1997,v,25.1 |
| 1998,TOTAL,11.6 |
| 1998,m,5.5 |
| 1998,v,18.8 |
| 1999,TOTAL,10.0 |
| 1999,m,4.6 |
| 1999,v,16.5 |
| 2000,TOTAL,8.6 |
| 2000,m,4.3 |
| 2000,v,13.8 |
| 2001,TOTAL,8.0 |
| 2001,m,3.5 |
| 2001,v,13.3 |
| 2002,TOTAL,7.7 |
| 2002,m,3.9 |
| 2002,v,12.3 |
| 2003,TOTAL,8.5 |
| 2003,m,3.5 |
| 2003,v,14.4 |
| 2004,TOTAL,7.1 |
| 2004,m,2.6 |
| 2004,v,12.4 |
| 2005,TOTAL,6.063413363763053 |
| 2005,m,3.4334279774104965 |
| 2005,v,9.1559312771659 |
| 2006,TOTAL,6.5 |
| 2006,m,2.9 |
| 2006,v,10.8 |
| 2007,TOTAL,6.6 |
| 2007,m,3.3 |
| 2007,v,10.6 |
| 2008,TOTAL,6.244698169087362 |
| 2008,m,2.196382192465311 |
| 2008,v,10.972396585162183 |
| 2009,TOTAL,5.506882291702176 |
| 2009,m,3.350436805583899 |
| 2009,v,8.01901286661259 |
| 2010,TOTAL,4.348808442835567 |
| 2010,m,2.3117040970088376 |
| 2010,v,6.716154118062919 |
| 2011,TOTAL,3.7840964213865385 |
| 2011,m,1.7620556505782885 |
| 2011,v,6.128245152346767 |
| 2012,TOTAL,3.4500424094835807 |
| 2012,m,1.6386448285886472 |
| 2012,v,5.544937507150513 |
| 2013,TOTAL,4.599096737400775 |
| 2013,m,2.091359180482452 |
| 2013,v,7.473530658044375 |
| 2014,TOTAL,4.263372806699661 |
| 2014,m,2.2130394744768926 |
| 2014,v,6.608051840869676 |
| 2015,TOTAL,4.9 |
| 2015,m,2.2 |
| 2015,v,8.1 |
| 2016,TOTAL,4.7726112263584115 |
| 2016,m,2.5175136053189537 |
| 2016,v,7.339931815528638 |
| 2017,TOTAL,3.68831697853073 |
| 2017,m,2.0252791663214498 |
| 2017,v,5.5775442490987 |