2004

8.6

2013

8.0

1999

6.5

1998

7.0

2003

7.6

1977

5.0

2013

7.0

2007

6.5

2005

10.0

2019

7.6

1988

5.0

2004

6.6

1972

7.9

1983

0.0

1997

6.5

1986

6.1

1999

5.7

1979

6.5

1992

6.0

2002

7.5