1990

6.0

2005

7.4

2004

7.7

2021

8.3

2014

8.2

2005

7.5

2000

6.1

2003

7.3

2006

7.8

1985

7.5

2006

7.9

2002

7.2

2005

8.1

2004

7.0

2016

0.0

2015

6.0

2014

6.6

2002

6.7

2003

7.2

2016

8.5