1963

5.7

1974

7.9

2021

8.3

1992

6.5

1989

6.4

2011

7.6

2004

8.1

1972

7.6

1965

6.1

1958

6.7

1957

6.4

1959

7.5

1960

6.8

2014

7.1

1993

7.6

1955

6.6

1983

5.0

1957

7.5

2015

6.2

1993

5.0