Año | Dato |
1985
|
15,74
|
1986
|
14,81
|
1987
|
15,56
|
1988
|
15,74
|
1989
|
16,67
|
1990
|
16,67
|
1991
|
17,22
|
1992
|
17,04
|
1993
|
16,85
|
1994
|
17,22
|
1995
|
19,44
|
1996
|
20,56
|
1998
|
18,52
|
1999
|
18,52
|
2000
|
21,11
|
2001
|
21,30
|
2002
|
21,30
|
2003
|
22,59
|
2004
|
20,93
|
2005
|
20,56
|
2006
|
20,00
|
2007
|
20,74
|
2008
|
20,56
|
2009
|
19,07
|
2010
|
17,93
|
2011
|
18,48
|
2012
|
18,84
|
2013
|
16,85
|
2014
|
17,03
|
2015
|
15,58
|
2016
|
13,95
|
2017
|
13,22
|
2018
|
13,41
|
2019
|
14,67
|
2020
|
15,76
|
2021
|
17,21
|
2022
|
19,57
|
2023
|
19,20
|
|
|
|