2015

10.0

2017

5.0

1980

6.7

2004

7.6

2006

5.7

2008

7.0

1975

5.8

1995

6.5

1968

7.4

1996

4.6

2009

5.5

2005

6.9

1985

5.3

1930

6.4

2023

3.5

2007

5.3

2014

5.3

2004

7.5

2001

6.1

2019

5.7