Año | Dato |
1985
|
13,87
|
1986
|
13,87
|
1987
|
14,01
|
1988
|
13,79
|
1989
|
13,32
|
1990
|
13,55
|
1991
|
13,35
|
1992
|
13,49
|
1993
|
13,58
|
1994
|
13,93
|
1995
|
13,81
|
1996
|
13,60
|
1998
|
13,24
|
1999
|
12,69
|
2000
|
13,00
|
2001
|
13,26
|
2002
|
13,58
|
2003
|
14,35
|
2004
|
14,61
|
2005
|
16,18
|
2006
|
16,40
|
2007
|
18,79
|
2008
|
19,17
|
2009
|
19,19
|
2010
|
19,04
|
2011
|
18,81
|
2012
|
18,76
|
2013
|
18,54
|
2014
|
17,80
|
2015
|
17,05
|
2016
|
16,65
|
2017
|
15,92
|
2018
|
15,61
|
2019
|
15,91
|
2020
|
16,84
|
2021
|
17,41
|
2022
|
17,78
|
2023
|
18,30
|
|
|
|