1996

8.0

2008

6.0

2001

4.3

1997

3.5

2018

6.0

1973

6.1

1970

5.5

2004

5.0

1971

5.1

2014

3.0

2007

6.1

1977

7.3

1987

7.7

2009

4.5

2004

7.8

2001

4.5

2009

5.2

1995

7.6

1987

6.1

2002

7.1