1950

8.1

1950

8.0

1955

7.5

2007

5.9

2008

6.9

1977

6.3

1999

4.3

1984

5.0

1979

0.0

2010

0.0

1990

6.8

1998

6.2

1988

5.5

1968

3.5

1973

0.0

1972

7.4

2020

8.3

1982

6.0

1963

6.2

2001

6.9