1997

4.5

1998

5.3

2012

8.4

2000

7.6

2009

6.7

1993

7.7

2000

7.9

1997

4.0

2004

6.3

2005

7.5

2003

7.6

2022

8.4

2007

7.8

1999

6.5

1997

0.0

2017

6.0