2010

6.5

1980

5.7

1974

7.4

2014

5.5

1981

6.8

1987

4.7

2013

4.3

1986

6.0

2009

5.3

1992

2.0

1986

3.0

2000

6.1

2018

5.8

2020

5.4

2009

6.6

1995

6.4

2009

6.1

1985

6.5

2004

1.3

2010

6.0