1982

4.0

1949

6.9

2005

6.5

1990

6.8

2004

5.4

2007

4.4

2006

6.6

2000

8.2

1994

8.3

1932

7.8

2000

7.4

1959

7.9

2003

8.2

2017

3.9

2017

5.7

2001

5.6

1992

6.3

2003

6.6

2019

6.8

2014

6.2