1984

5.9

2006

6.6

2001

7.8

2004

7.3

1990

7.7

1971

7.5

1984

7.0

2012

0.0

2017

6.0

1984

10.0

2005

7.1

1986

0.0

1951

6.1

1976

7.0

1988

8.0

1991

6.8

2007

7.3

2006

7.8

1977

6.7

1964

6.2