2001

7.3

2013

8.5

1998

6.8

1967

6.2

2009

4.7

1987

6.9

1989

5.7

2009

6.1

1966

7.2

1965

0.0

1967

6.6

1974

6.4

1945

6.6

1972

6.1

1984

7.2

2004

6.9

1969

7.1

1961

5.9

2020

0.0

1998

4.0