1987

7.8

1954

7.9

1979

6.9

2003

7.8

1983

6.4

1998

7.0

1994

6.0

2000

7.1

1948

6.0

1955

6.2

1999

7.1

1965

6.0

1997

5.6

2009

6.4

7.5

1989

5.3

2015

8.0

2023

0.0

1978

4.3

1933

5.8