2000

2.0

1984

0.0

2004

5.7

2009

6.1

1997

6.3

2001

5.7

2005

6.5

1991

6.4

2005

5.3

2016

6.4

2009

3.2

1992

6.1

1984

5.8

2005

6.1

2004

5.5

2004

6.6

1949

6.9

1989

0.0

2002

9.3

2017

7.4