2001

6.4

1947

7.5

1984

5.0

2009

7.8

1987

0.0

2014

3.7

2016

5.5

1974

7.3

1999

1.0

2008

7.3

1993

5.8

1967

7.3

1994

6.2

1981

6.2

2016

6.8

2000

6.2

1959

5.4

2017

5.2

2011

8.7

1989

5.2