1985

7.7

1933

7.0

2001

7.8

2005

6.2

2003

6.5

1974

5.3

1997

6.8

2006

3.5

2014

6.6

1960

5.6

1991

4.7

1986

6.7

2014

7.7

1999

7.3

2005

4.2

2007

6.4

1994

7.6

1991

6.3

1992

5.7

2022

0.0