1951

6.8

1952

6.4

1943

6.8

2005

5.9

2005

6.9

1989

6.3

2020

6.9

1986

6.8

1994

6.2

1976

7.3

2006

6.1

1933

0.0

1952

7.2

2004

7.7

2006

5.7

1968

6.9

2019

7.1

2003

6.3

2006

6.7

1985

6.5