1987

6.5

2002

6.4

2000

7.4

2007

3.8

2017

5.2

2017

6.7

2004

3.8

2017

0.0

1989

6.0

2019

0.0

2021

8.5

1999

5.4

2010

4.5

2019

8.0

2008

6.8

1992

4.9

1991

5.6

1974

0.0

2018

5.8

2009

3.5