1971

8.1

2005

8.3

1984

0.0

1982

0.0

2001

2.8

2021

5.2

2018

0.0

2006

0.0

0.0

1993

7.9

1988

6.4

2002

4.1

2007

4.6

1990

7.4

1993

5.6