2019

6.0

1991

6.8

1965

7.5

2005

7.6

1957

8.3

2006

7.2

2006

7.2

2006

7.0

2007

6.4

2004

7.0

1985

7.8

1937

7.9

0.0

2000

7.6

1997

6.6

2000

7.6

1987

7.3

1998

7.3

1993

7.7

1994

7.5