Año | Dato |
1985
|
4,84
|
1986
|
5,06
|
1987
|
5,13
|
1988
|
5,76
|
1989
|
5,70
|
1990
|
5,70
|
1991
|
7,18
|
1992
|
7,85
|
1993
|
10,00
|
1994
|
13,83
|
1995
|
14,84
|
1996
|
15,79
|
1998
|
17,03
|
1999
|
17,03
|
2000
|
20,35
|
2001
|
22,85
|
2002
|
25,66
|
2003
|
29,46
|
2004
|
41,90
|
2005
|
46,93
|
2006
|
50,98
|
2007
|
56,27
|
2008
|
63,86
|
2009
|
65,63
|
2010
|
64,92
|
2011
|
64,22
|
2012
|
65,73
|
2013
|
64,29
|
2014
|
63,56
|
2015
|
64,22
|
2016
|
64,32
|
2017
|
66,55
|
2018
|
68,63
|
2019
|
69,89
|
2020
|
72,34
|
2021
|
75,90
|
2022
|
76,71
|
2023
|
78,92
|
|
|
|