2003

5.7

2013

7.6

2008

7.4

1968

6.4

1994

6.3

2011

7.3

2012

6.0

1985

6.5

1936

6.8

2016

4.7

2009

7.9

2013

8.1

2006

7.8

1969

6.6

2003

6.7

2007

7.3

2011

7.5

2023

9.3

2007

7.7

1964

5.0