2017

7.9

2004

6.6

1988

7.7

2014

6.9

1992

6.9

1997

7.6

2017

3.6

1962

5.7

1974

6.5

2008

6.2

1935

0.0

2002

6.2

1998

5.7

2001

6.7

2013

4.5

1996

6.0

1986

6.3

2008

6.0

2017

6.1

1984

6.8