| Año | Dato |
|
1987
|
10,78
|
|
1988
|
11,24
|
|
1989
|
12,02
|
|
1990
|
12,75
|
|
1991
|
13,79
|
|
1992
|
15,36
|
|
1993
|
16,99
|
|
1994
|
18,69
|
|
1995
|
20,98
|
|
1996
|
26,75
|
|
1997
|
28,02
|
|
1998
|
28,89
|
|
1999
|
29,39
|
|
2000
|
30,89
|
|
2001
|
37,22
|
|
2002
|
47,34
|
|
2003
|
49,36
|
|
2004
|
55,13
|
|
2005
|
90,64
|
|
2006
|
104,67
|
|
2007
|
103,44
|
|
2008
|
100,77
|
|
2009
|
112,54
|
|
2010
|
110,10
|
|
2011
|
111,24
|
|
2012
|
110,11
|
|
2013
|
115,64
|
|
2014
|
114,31
|
|
2015
|
109,69
|
|
2016
|
105,15
|
|
2017
|
101,72
|
|
2018
|
100,92
|
|
2019
|
100,59
|
|
2020
|
101,37
|
|
2021
|
101,50
|
|
2022
|
101,73
|
|
2023
|
101,38
|
|
2024
|
101,30
|
|
2025
|
101,78
|
|
2026
|
101,77
|
|
|
 |