2017

6.8

2020

8.2

1984

10.0

1973

0.0

1959

6.9

2000

6.4

1991

5.5

1974

6.0

1997

6.1

2006

6.7

1973

7.5

2004

5.6

1982

5.0

2015

6.0

1957

6.2

2000

5.5

1982

5.5

1984

5.9

1988

8.0

2007

6.8