1977

5.6

2019

5.6

2001

5.9

2000

7.3

1994

6.6

1991

7.6

1958

8.2

1994

6.5

1940

7.9

1990

7.2

2006

5.5

2020

0.0

1980

6.6

1996

5.5

2021

8.5

2007

6.2

1998

6.0

1998

6.3

2000

6.1

1995

6.5