2005

6.2

2014

6.0

2013

5.2

2002

6.4

2008

6.8

2001

7.8

1992

5.0

2010

7.5

2020

0.0

2013

0.0

1989

6.0

2004

3.8

1964

6.4

2012

7.0

1940

5.0

2016

7.9

1991

5.8

2022

10.0

2023

0.0

1998

5.8