2005

7.7

1995

6.4

2004

7.2

1972

8.7

1974

8.6

1956

7.7

1998

5.5

1964

5.3

1989

5.0

1954

8.0

2013

6.5

1997

7.8

2014

7.9

2016

5.5

1955

7.3

2017

6.7

2007

7.6

2007

5.8

1995

6.5

2016

0.0