1991

4.5

2007

7.6

2006

7.2

2015

6.2

2014

5.2

2004

6.4

2007

8.3

2013

3.7

1995

0.0

2021

7.9

1996

2.3

1994

4.8

1999

6.0

2004

8.0

1997

8.3

1995

7.7

2007

5.3

2002

7.5

2000

0.0