1982

4.0

2015

5.5

2003

6.0

1986

6.8

1995

7.0

2000

7.5

2001

0.0

2003

6.9

2018

6.2

1983

6.1

2011

5.0

1988

3.8

2006

4.5

1986

5.0

1993

7.1

1969

9.0

2010

6.0

1998

6.9

2013

7.8

1993

5.6

1987

4.0

1984

5.0

2008

6.5

1996

6.6

1987

8.0

1995

7.5