1977

7.4

2008

7.8

5.7

2010

7.1

2023

7.8

1993

5.5

1949

6.2

2014

5.9

2012

8.4

2011

7.5

2004

7.5

2003

4.0

2012

0.0

2019

5.6

1983

4.4

1995

5.6