1964

7.3

2018

0.0

1997

5.6

2014

6.3

2017

5.3

2014

5.8

1932

5.2

1967

7.8

2006

7.0

2009

8.0

2012

5.7

2018

6.2

2013

5.7

2018

6.0

1951

0.0

1997

6.5

1999

5.7

1998

7.1

2000

6.8

2001

6.7