2005

6.3

2025

9.0

2005

5.6

1998

5.3

1989

6.8

1989

7.8

1990

7.5

2009

5.5

2005

6.4

2008

7.2

2004

5.5

2014

6.9

2018

5.9

2018

6.3

2000

6.4

2009

7.3

1983

6.7

1976

6.2

2015

7.2

1988

6.5