2004

6.9

1994

6.7

1933

0.0

2015

6.9

1991

6.2

1990

6.7

1993

5.5

2003

6.6

1997

6.1

1977

6.3

2007

6.3

2005

6.0

2019

6.6

2006

6.9

2008

6.2

1996

6.8

1959

4.2

1973

7.8

1952

7.3

1942

7.0