1941

7.0

1987

4.1

1985

6.2

1984

6.3

2009

6.5

2010

7.7

2004

6.1

1988

7.4

2006

5.1

2000

5.2

2015

5.5

2007

5.5

2006

6.6

2004

8.0

1992

4.5

2026

0.0

1997

5.9

2004

6.4

1994

6.1

2001

6.9