1991

7.0

2007

4.1

2012

6.8

1989

6.5

2009

7.1

2005

6.3

2016

6.8

2018

8.4

1994

4.4

1997

6.7

2020

3.4

2013

0.0

2003

5.5

2012

3.9

1993

6.4

1991

4.7

1990

5.5

1987

5.9

1986

7.1

1992

6.7

2007

6.9

1990

6.2

2019

2.0

1991

6.1

1991

3.8

2012

6.4

1993

5.0

1996

5.3

1988

6.0

1990

7.4

2012

4.4

1990

7.4

2010

6.3

1988

5.9

2019

5.7

1998

5.2

2015

5.7