1979

7.6

2023

8.0

1995

5.6

1994

7.4

2011

7.1

2023

5.9

1977

7.0

2011

8.2

2009

5.4

1962

6.9

1984

7.0

1987

5.2

2004

5.5

2002

6.8

1995

8.7

2020

8.1

1959

6.1

2014

7.7

1968

6.9

1985

7.4