1991

6.8

1954

4.6

1975

0.0

2004

4.0

1971

5.2

2020

0.0

1990

7.7

2005

7.1

1953

6.3

1997

4.8

1982

6.7

1953

7.0

1953

6.5

1983

8.0

2007

5.0

1968

7.6

1976

6.2

1962

4.8

1964

6.2

2013

5.5