1989

6.6

2002

6.1

1987

7.3

2008

6.7

2006

6.0

2004

6.8

2007

5.5

2008

5.8

1999

4.8

0.0

1989

6.1

2016

0.0

1988

7.1

1932

7.4

2002

7.1

2008

3.3

2017

4.5

2014

5.9

1982

7.2

2000

5.0