1995

7.5

1985

6.6

2015

5.7

1979

7.6

1988

4.5

2007

0.0

2005

6.5

2006

5.4

2014

6.7

1974

6.1

2025

10.0

2002

5.8

2013

7.0

2014

6.7

1997

6.2

1984

5.5

1974

7.0

2005

0.0

2019

0.0

2014

6.7