1951

7.6

2007

4.7

1962

7.9

1998

6.4

1997

5.1

2011

7.5

1954

7.2

1965

8.0

2017

6.8

1990

7.4

2018

6.1

2010

7.2

2022

6.3

1986

5.6

2008

6.0

1994

7.5

1967

8.1

2010

4.9

1979

6.7

1969

7.9