Año | Dato |
1985
|
34,67
|
1986
|
34,94
|
1987
|
34,97
|
1988
|
34,72
|
1989
|
34,56
|
1990
|
34,45
|
1991
|
34,06
|
1992
|
34,21
|
1993
|
34,97
|
1994
|
35,53
|
1995
|
36,12
|
1996
|
33,21
|
1998
|
33,27
|
1999
|
34,43
|
2000
|
35,96
|
2001
|
36,84
|
2002
|
37,50
|
2003
|
39,48
|
2004
|
40,88
|
2005
|
42,00
|
2006
|
42,65
|
2007
|
43,75
|
2008
|
44,79
|
2009
|
45,80
|
2010
|
46,11
|
2011
|
46,50
|
2012
|
46,63
|
2013
|
46,84
|
2014
|
47,00
|
2015
|
46,91
|
2016
|
45,68
|
2017
|
45,22
|
2018
|
45,21
|
2019
|
46,00
|
2020
|
46,71
|
2021
|
47,84
|
2022
|
48,95
|
2023
|
48,93
|
|
|
|