1933

7.6

2005

6.9

1989

6.0

1994

5.4

2000

4.8

1993

8.0

1997

6.6

2001

6.2

2013

0.0

2018

5.1

1994

6.3

2014

4.1

2008

3.4

1963

6.6

1964

7.0

1984

7.4

1987

0.0

2008

6.0

2014

6.6

2009

5.4