2012

6.2

2001

7.2

2015

6.0

1995

7.9

2011

7.1

1996

7.5

2020

7.0

1969

6.4

1990

6.5

1993

7.3

2010

7.9

2021

6.2

2017

4.9

2022

4.5

2022

5.6

1983

6.2

2005

9.7

1989

5.7

1988

5.4