2018

6.7

2019

6.2

2011

5.7

2009

5.6

1996

9.4

2009

7.6

2010

6.7

6.4

5.4

2010

5.0

2012

6.4

2010

6.9

1984

7.1

2017

6.8

7.8

2021

9.2

1994

5.7

2012

6.1

2027

0.0