2014

5.9

2015

6.7

2010

6.3

1987

6.2

2012

9.8

2008

6.5

2019

7.7

2013

6.1

5.6

2007

5.2

2009

5.4

2010

5.8

1981

7.3

2003

5.7

2012

6.1

2014

6.6

1984

6.5

2022

5.3

2007

5.4

1997

6.9