2000

6.0

1996

6.5

2009

6.1

2015

0.5

1991

4.2

2008

5.7

2006

5.2

2018

5.6

1994

5.7

2007

6.0

2012

5.5

2015

7.1

2019

1.0

1992

3.5

1999

4.4

2015

7.6

2003

0.0