1995

7.3

2003

5.9

2016

5.2

1988

6.9

1995

7.3

2003

5.7

2005

6.2

1975

10.0

1928

5.0

1984

5.6

2013

5.0

2010

3.2

2015

7.5

1946

3.0

1947

0.0

2016

7.5

2016

6.1

2017

7.6

1957

5.6

2015

6.9