2011

3.1

1990

9.0

1976

3.3

1999

1.0

2005

3.8

2001

4.4

1968

5.1

1969

5.5

1961

4.4

1954

0.0

1963

4.6

1976

5.6

1973

5.4

1997

5.1

1997

6.5

1995

0.0

1998

6.2

1975

5.7

1966

4.7

1955

0.0