Año | Dato |
1985
|
29,31
|
1986
|
0,00
|
1987
|
33,60
|
1988
|
14,72
|
1989
|
13,57
|
1990
|
15,43
|
1991
|
23,07
|
1992
|
16,08
|
1993
|
18,16
|
1994
|
21,74
|
1995
|
19,10
|
1996
|
18,32
|
1998
|
22,22
|
1999
|
23,26
|
2000
|
23,95
|
2001
|
25,29
|
2002
|
24,85
|
2003
|
28,32
|
2004
|
29,19
|
2005
|
26,58
|
2006
|
19,34
|
2007
|
18,70
|
2008
|
17,26
|
2009
|
17,57
|
2010
|
18,01
|
2011
|
19,00
|
2012
|
17,67
|
2013
|
15,31
|
2014
|
15,52
|
2015
|
16,22
|
2016
|
17,01
|
2017
|
16,08
|
2018
|
15,12
|
2019
|
15,46
|
2020
|
14,92
|
2021
|
14,46
|
2022
|
15,20
|
2023
|
14,46
|
|
|
|