1966

6.5

1966

6.5

1965

6.3

1964

6.6

1982

6.1

2006

5.0

2014

4.1

1993

6.5

1974

7.2

2007

3.9

1993

6.6

1996

5.4

1994

4.9

1993

6.0

1990

5.1

2004

5.3

2006

6.4

1977

6.4

2000

5.8

2002

5.8