2003

5.7

2021

9.2

2009

4.1

1986

5.8

2008

6.1

2000

6.3

2004

6.7

1995

7.2

2016

6.6

1988

7.6

2007

6.3

1989

5.2

2013

6.1

2008

6.7

2004

6.8

2010

7.8

2006

6.7

1998

6.0

1999

6.2

1972

6.4