1982

5.9

2012

5.2

1959

6.0

2009

8.0

1975

5.9

2014

4.7

0.0

2002

6.2

2006

5.5

2006

6.2

1997

6.6

1988

6.6

2005

5.5

2017

7.6

1986

0.0

1985

6.5

1986

7.7

1993

6.6

2014

6.1

1994

6.4