2016

6.8

1987

6.4

2001

6.2

2008

0.0

2010

4.8

1999

4.5

2000

6.0

1982

5.9

1980

7.5

1992

8.0

1985

8.0

2014

6.7

1988

1.0

2020

6.2

2009

6.4

2005

6.3

2019

6.6