1983

5.5

2000

6.4

1979

6.6

1996

5.7

1991

7.3

1968

7.5

1990

6.6

1993

7.2

1978

6.8

1970

7.2

2017

6.4

2002

8.4

2003

8.5

1930

7.8

2022

6.6

2015

5.8

1989

7.2

2007

6.6

1998

5.4

1988

7.5