2001

6.9

1986

7.1

1982

6.0

2008

6.6

1996

6.1

1986

5.6

1999

4.8

2017

4.8

1992

4.2

2021

6.4

1977

5.6

1929

0.0

2005

4.6

1990

5.8

2004

6.0

1988

4.5

2001

7.0

1974

5.7

1941

3.0

1979

4.7