1990
61.77871
0.7521
1991
63.84276
0.9475
1992
70.78461
0.949398
1993
71.33542
0.899824
1994
70.40599
0.727462
1995
66.68196
0.6285
1996
69.4923
0.878508
1997
70.73568
0.8148
1998
68.970245
1.121169
1999
70.085269
1.269487
2000
69.629649
1.431534
2001
68.285385
1.62073
2002
70.524591
1.855071
2003
75.048203
2.413735
2004
75.616297
2.47185
2005
76.035426
2.599765
2006
81.367493
3.142991
2007
80.240226
2.796485
2008
82.087139
2.986363
2009
84.321432
4.30026
2010
89.094985
3.96616
2011
93.224063
4.648026
2012
93.475273
4.941454
2013
96.354536
5.426295