1995

8.0

2013

4.8

2006

6.0

2004

7.4

2010

3.0

2017

6.3

1983

5.5

1987

7.3

1989

7.0

1973

7.5

2006

7.4

2001

5.9

2000

7.4

1998

5.4

2016

4.2

2018

6.4

1986

5.8

2003

6.3

2007

6.7

2002

5.3