1986

6.0

1999

5.7

1979

6.5

2002

7.5

1983

5.0

1976

7.5

2013

7.0

2005

10.0

1993

7.1

2004

8.2

1993

7.0

1998

7.0

1989

6.6

2013

8.1

2019

5.5

2021

8.5

2013

3.5

2007

7.5

1969

6.5

2006

4.2