2001

6.6

1988

1.0

2004

5.9

2006

5.5

1962

6.9

2005

7.3

1992

3.3

2003

7.4

2000

7.1

1954

7.6

2014

4.6

2019

8.7

2017

6.1

2000

6.3

1981

7.0

2002

7.5

1977

5.9

2016

7.0

1974

0.0

2008

6.9