Harper added more debt than any other Canadian government in history-and with lower growth  than any government since RB Bennett.
Here are the Harper Deficits:

2007 (2.4) 
2008 (5.8) 
2009 (55.6) 
2010 (33.3) 
2011 (26.2) 
2012 (25.9) 
2013 (18.9) 
2014 (16.6) 
2015 (2.1)