Año | Dato |
1985
|
15,14
|
1986
|
14,61
|
1987
|
14,65
|
1988
|
14,72
|
1989
|
14,82
|
1990
|
15,07
|
1991
|
16,24
|
1992
|
16,28
|
1993
|
17,30
|
1994
|
19,36
|
1995
|
20,71
|
1996
|
22,52
|
1998
|
24,01
|
1999
|
24,72
|
2000
|
27,27
|
2001
|
30,32
|
2002
|
33,87
|
2003
|
38,33
|
2004
|
38,90
|
2005
|
40,57
|
2006
|
42,34
|
2007
|
46,03
|
2008
|
49,36
|
2009
|
49,50
|
2010
|
53,03
|
2011
|
55,63
|
2012
|
56,02
|
2013
|
55,49
|
2014
|
54,36
|
2015
|
54,68
|
2016
|
54,43
|
2017
|
54,54
|
2018
|
54,68
|
2019
|
55,31
|
2020
|
58,09
|
2021
|
60,98
|
2022
|
62,67
|
2023
|
63,30
|
|
|
|