1967

7.5

1993

6.2

2000

7.0

2016

10.0

2016

5.5

2003

5.1

2005

6.3

1972

7.1

1937

4.4

2007

6.7

1990

0.0

2003

6.1

1942

6.0

2001

6.3

1970

5.6

1985

6.4

2003

6.0

1997

5.2

1975

5.8

2002

7.4