| Año | Dato |
|
1987
|
8,19
|
|
1988
|
9,83
|
|
1989
|
10,86
|
|
1990
|
13,40
|
|
1991
|
23,78
|
|
1992
|
22,30
|
|
1993
|
22,07
|
|
1994
|
29,99
|
|
1995
|
29,41
|
|
1996
|
37,42
|
|
1997
|
39,84
|
|
1998
|
39,45
|
|
1999
|
32,27
|
|
2000
|
32,89
|
|
2001
|
37,48
|
|
2002
|
42,67
|
|
2003
|
44,07
|
|
2004
|
55,57
|
|
2005
|
360,11
|
|
2006
|
324,30
|
|
2007
|
295,03
|
|
2008
|
259,28
|
|
2009
|
210,22
|
|
2010
|
187,75
|
|
2011
|
171,19
|
|
2012
|
165,54
|
|
2013
|
166,21
|
|
2014
|
165,78
|
|
2015
|
165,71
|
|
2016
|
152,33
|
|
2017
|
138,02
|
|
2018
|
136,74
|
|
2019
|
137,43
|
|
2020
|
139,20
|
|
2021
|
138,76
|
|
2022
|
138,05
|
|
2023
|
134,78
|
|
2024
|
133,94
|
|
2025
|
134,60
|
|
2026
|
134,77
|
|
|
 |