1997

5.6

1991

0.0

1992

7.4

1990

6.9

2006

6.6

1985

6.4

1999

6.8

1995

5.4

2013

5.0

2015

6.3

2014

6.9

1991

3.8

2015

6.6

1998

5.5

1993

8.4

2019

7.9