1999

8.5

1973

6.2

2009

3.6

2014

5.0

0.0

2008

6.2

2017

5.5

1968

5.8

2008

5.8

2000

2.7

2020

0.0

1984

6.4

2009

4.6

2004

5.2

1975

7.2

2003

7.3

2017

5.5

2019

4.7

1974

7.4

2007

7.1