1988

7.0

2008

4.4

1995

6.3

1966

8.5

1981

5.8

2021

7.8

2008

6.7

2016

7.0

1966

7.3

2011

5.5

2003

5.8

1965

6.5

1991

7.3

1965

7.6

2009

7.5

2009

7.9

1973

6.9

2015

7.1

2019

7.0

1993

5.5