2006

6.9

1988

6.2

2000

6.9

2003

6.5

1923

5.2

1984

5.0

2000

0.0

1971

6.1

2000

6.1

1998

5.9

1965

7.7

0.0

2017

5.8

2019

4.8

1976

6.4

2015

6.3

1933

6.0

1973

7.0

2017

7.0

1994

5.0