2008

7.2

1989

6.5

1986

6.8

1988

5.8

2006

6.2

1980

6.6

2009

5.3

1982

6.9

2000

6.0

1988

6.3

2008

4.6

2002

5.8

2009

5.6

1989

7.1

1947

7.5

1999

5.6

2016

4.9

1998

6.1

1990

5.5

2012

4.9