2005

8.2

2011

7.3

2019

7.3

2003

8.0

1984

5.8

2002

6.3

1999

7.9

2000

7.5

1987

5.0

2015

6.0

2013

7.7

1977

7.8

2003

7.5

2001

7.5

1992

4.5

1955

0.0

1999

7.5

1983

3.5

1995

0.0

1994

8.4