2016

6.4

1990

5.8

2021

8.0

2015

7.1

1995

7.5

2008

6.2

1990

7.4

1999

7.9

1997

3.0

1992

5.5

1998

6.9

1992

5.7

1989

5.4

1987

0.0

2000

5.8

1989

4.6

2014

6.0