1950

8.1

1958

7.1

2018

4.8

2006

7.5

1961

5.4

1999

4.8

1973

0.0

1981

0.0

2008

7.6

2013

5.2

1980

5.0

1990

6.9

2006

5.5

1998

6.3

1988

0.0

1983

6.4

1999

5.3

1952

6.5

1954

8.1

1998

6.8