2016

7.8

1998

7.1

1990

3.0

1989

3.2

1989

5.1

2016

7.3

2005

8.3

1988

6.1

1993

4.9

2017

6.4

1992

4.8

1998

5.9

1985

7.2

1993

8.4

2012

7.7

1994

6.0