2009
6.3 
Mike Houston
6.3
2016
4.5 
2015
7.2 
2015
6.3 
2014
6.7 
2014
6.2 
2013
6.1 
6.3
4.5
7.2
6.3
6.7
6.2
6.1
6.3
4.5
7.2
6.3
6.7
6.2
6.1