2000

7.3

1975

6.5

2014

5.3

2010

6.3

1976

6.0

2011

5.9

2011

6.6

1977

8.1

1959

6.2

1969

8.0

1964

6.5

2000

5.0

2016

6.3

2016

6.0

2002

7.3

1977

6.4

1965

3.3

1965

8.0

1957

5.0

1962

6.5