1968

6.2

2020

4.4

2017

2.0

2014

0.0

2017

6.7

2016

0.0

2016

0.0

2014

9.0

2019

6.0

2005

5.1

2012

6.8

1999

7.3

2006

6.2

1998

6.0

2004

5.5

2002

6.0

1985

7.4

2006

5.2

1988

6.6

1985

4.1