1999

6.9

2018

4.3

1981

4.7

2005

5.1

2013

4.8

2002

0.0

2009

4.7

1967

4.7

1959

8.8

2015

7.0

1967

5.0

1932

6.9

2002

5.2

2017

3.9

1962

6.0

1997

6.7

2016

4.0

2004

6.7

2000

7.2

1928

4.0