1967

6.9

2014

6.7

2021

4.9

1991

7.4

2006

4.5

1978

6.1

2005

4.9

2006

6.1

2002

5.3

2016

6.3

2016

4.0

1980

5.8

2018

5.8

1995

6.5

2003

6.0

2025

0.0

1987

5.1

2014

4.8

2015

5.4

2013

6.4