2023

9.7

2010

7.8

2001

6.9

2014

7.5

1990

7.6

1994

7.1

2007

6.8

2019

6.7

1984

7.3

1980

6.0

2013

7.6

1994

6.4

2015

7.9

2008

4.3

2020

6.7

2007

6.9

2003

7.2

1984

6.7

2005

5.7

2017

6.0