1991

6.8

2006

6.6

1954

4.6

1975

0.0

2004

4.0

2014

5.9

2016

4.7

2020

0.0

1990

7.7

1971

7.5

2005

7.1

1953

6.3

1997

4.8

1982

6.7

1953

7.0

1953

6.5

1983

8.0

2023

6.1

2007

5.0

1968

7.6