1987

7.3

2019

10.0

1978

7.4

1980

6.4

2008

4.1

2004

6.8

1984

7.2

1951

6.5

1977

8.8

2007

6.5

2004

6.4

2008

5.1

1952

6.3

1996

6.5

1998

6.9

1935

7.0

2023

4.0

1977

6.7

1948

8.0

2021

6.0