1984

7.0

1989

6.5

1990

0.0

1995

5.9

1982

5.5

1984

5.9

2006

6.6

1982

5.0

1991

6.8

2001

7.8

2004

7.3

2016

3.5

1953

5.0

2005

7.1

1990

7.7

1987

0.0

1971

7.5

1963

0.0

2007

7.3

2006

7.8