Año | Dato |
1985
|
7,50
|
1986
|
8,06
|
1987
|
8,23
|
1988
|
8,23
|
1989
|
8,23
|
1990
|
8,54
|
1991
|
9,69
|
1992
|
9,65
|
1993
|
10,00
|
1994
|
10,49
|
1995
|
11,63
|
1996
|
11,04
|
1998
|
11,91
|
1999
|
10,73
|
2000
|
10,94
|
2001
|
11,60
|
2002
|
13,58
|
2003
|
16,08
|
2004
|
16,63
|
2005
|
18,47
|
2006
|
18,85
|
2007
|
20,49
|
2008
|
20,87
|
2009
|
20,31
|
2010
|
21,28
|
2011
|
21,63
|
2012
|
21,32
|
2013
|
22,27
|
2014
|
22,30
|
2015
|
21,74
|
2016
|
26,45
|
2017
|
26,13
|
2018
|
26,06
|
2019
|
26,73
|
2020
|
27,33
|
2021
|
28,49
|
2022
|
28,67
|
2023
|
28,88
|
|
|
|