| Año | Dato |
|
1987
|
9,25
|
|
1988
|
10,18
|
|
1989
|
12,60
|
|
1990
|
12,77
|
|
1991
|
13,40
|
|
1992
|
14,53
|
|
1993
|
17,16
|
|
1994
|
17,76
|
|
1995
|
18,40
|
|
1996
|
18,88
|
|
1997
|
19,37
|
|
1998
|
19,84
|
|
1999
|
20,17
|
|
2000
|
20,95
|
|
2001
|
21,66
|
|
2002
|
22,87
|
|
2003
|
24,11
|
|
2004
|
25,30
|
|
2005
|
138,49
|
|
2006
|
137,76
|
|
2007
|
140,16
|
|
2008
|
142,00
|
|
2009
|
143,60
|
|
2010
|
142,57
|
|
2011
|
144,82
|
|
2012
|
142,95
|
|
2013
|
142,91
|
|
2014
|
142,59
|
|
2015
|
142,94
|
|
2016
|
130,99
|
|
2017
|
120,34
|
|
2018
|
120,32
|
|
2019
|
120,26
|
|
2020
|
120,22
|
|
2021
|
120,26
|
|
2022
|
119,95
|
|
2023
|
120,49
|
|
2024
|
120,51
|
|
2025
|
120,20
|
|
2026
|
120,20
|
|
|
 |