1950

8.1

1963

7.5

1951

5.2

2000

8.2

1967

6.5

2007

6.1

2005

4.8

1984

5.7

1996

3.2

2015

5.8

1973

0.0

2022

7.6

1971

6.3

1952

6.6

2003

6.2

1979

0.0

1946

7.1

1964

0.0

1969

6.5

2015

4.5