2020

6.4

2010

6.8

2007

5.7

2021

9.2

2011

5.6

1980

8.4

2010

7.1

2006

6.7

2003

7.0

2011

6.2

1989

6.1

2004

6.4

6.4

5.4

2015

6.6

1989

5.9

6.5

2019

8.7

2011

7.1

2008

6.2