1990

5.1

2023

8.1

2011

6.2

2016

7.4

1990

7.4

1988

8.1

2020

7.2

2010

8.4

2008

7.8

1993

8.0

1995

6.9

2021

7.8

2014

7.4

2019

8.1

1986

7.1

2015

7.3

2009

8.2

2001

6.9

2007

6.8

2013

6.2