2005

7.6

1940

4.8

1985

6.2

1990

5.7

1993

5.3

2007

6.2

1999

6.4

1939

6.0

2015

6.5

1978

4.6

1936

0.0

1979

5.8

2004

8.0

1994

8.3

2006

6.9

1976

7.8

1979

7.3

1982

6.9

1985

7.1

1990

5.8