2000

0.0

2017

7.4

2008

3.2

2014

0.0

1999

3.7

1997

7.8

2014

6.7

2009

7.5

2021

7.5

0.0

2019

2.8

1970

6.2

1990

5.7

2014

5.9

2012

5.0

2005

3.0

2021

8.1

2007

6.2