2010

7.5

2013

7.0

1987

6.5

2014

5.9

2010

0.0

2013

0.0

2013

0.0

2009

8.1

1989

5.5

0.0

6.0

1993

6.1

1994

7.0

0.0

1975

5.0

1967

0.0

1975

0.0

1998

7.0

2005

8.0

1997

0.0