Año | Dato |
1985
|
48,73
|
1986
|
46,71
|
1987
|
46,71
|
1988
|
45,78
|
1989
|
45,32
|
1990
|
45,65
|
1991
|
48,06
|
1992
|
48,27
|
1993
|
48,90
|
1994
|
49,49
|
1995
|
48,99
|
1996
|
48,19
|
1998
|
47,72
|
1999
|
48,06
|
2000
|
48,86
|
2001
|
48,86
|
2002
|
48,90
|
2003
|
48,27
|
2004
|
49,62
|
2005
|
50,46
|
2006
|
53,42
|
2007
|
55,95
|
2008
|
58,27
|
2009
|
61,22
|
2010
|
61,77
|
2011
|
63,06
|
2012
|
65,59
|
2013
|
66,04
|
2014
|
66,04
|
2015
|
67,46
|
2016
|
66,63
|
2017
|
67,58
|
2018
|
67,54
|
2019
|
69,07
|
2020
|
69,86
|
2021
|
72,60
|
2022
|
73,72
|
2023
|
76,46
|
|
|
|