2000

6.9

1999

7.4

1942

6.2

1985

4.1

1996

7.0

1993

6.2

2006

7.4

1967

7.5

1998

6.7

2018

6.4

2015

6.0

2002

5.3

1993

5.7

2002

4.4

2006

6.0

1975

7.8

2014

4.8

1932

4.0

2004

5.6

2019

6.5