1990

3.9

1986

5.7

2016

4.8

2017

2.8

2004

5.6

2019

4.2

2006

6.2

2009

6.6

1981

5.4

1994

6.9

1992

7.2

1984

7.3

2016

2.0

2024

6.1

0.0

2018

0.0

1980

5.5

1983

0.0

2003

6.1

2006

5.8