2008

5.2

2004

5.8

1926

5.6

1927

6.6

2007

5.7

1973

6.8

2009

8.7

2005

5.5

1991

5.3

2000

6.7

2012

6.4

2000

7.0

2017

6.8

2012

7.2

1984

7.1

2015

5.1

2023

9.2

1985

6.2

2011

5.9

2002

5.4