1990

7.8

2003

7.6

1994

7.4

1995

7.3

1942

7.7

1975

7.5

1951

6.5

2016

8.1

1978

6.7

1993

7.0

1992

7.4

1995

6.5

1961

8.1

1968

4.2

1996

6.7

1958

7.1

1998

7.2

1995

7.4

2018

5.3

1968

6.7