Año | Dato |
1985
|
10,00
|
1986
|
9,46
|
1987
|
9,50
|
1988
|
9,13
|
1989
|
9,04
|
1990
|
8,92
|
1991
|
9,17
|
1992
|
9,21
|
1993
|
9,13
|
1994
|
8,83
|
1995
|
9,04
|
1996
|
8,83
|
1998
|
9,46
|
1999
|
9,67
|
2000
|
9,42
|
2001
|
10,17
|
2002
|
11,58
|
2003
|
12,57
|
2004
|
13,32
|
2005
|
14,36
|
2006
|
15,23
|
2007
|
15,39
|
2008
|
15,93
|
2009
|
15,68
|
2010
|
16,24
|
2011
|
15,66
|
2012
|
15,25
|
2013
|
15,21
|
2014
|
14,96
|
2015
|
14,50
|
2016
|
13,43
|
2017
|
13,02
|
2018
|
13,14
|
2019
|
13,06
|
2020
|
12,77
|
2021
|
14,38
|
2022
|
15,83
|
2023
|
16,03
|
|
|
|