1973

5.9

1978

7.6

1954

8.4

2019

8.5

1990

7.0

2020

6.7

2023

8.1

1963

7.7

1979

8.2

1985

8.3

1990

7.4

2004

8.4

1997

7.9

1977

8.2

1994

8.7

1957

8.5

2011

6.6

2019

7.7

1995

7.3

2004

7.5