Because I clearly have no life: for comparison, looking at the last few full years of sales:
2013
Top 20: 7 Marvel, 12 DC (6 Marvel, 3 DC in top 10)
Top 100: 48 Marvel, 49 DC
2014
Top 20: 14 Marvel, 5 DC (all Batman; no DC books in top 10)
Top 100: 53 Marvel, 43 DC
2015, ignoring all Marvel Star Wars books:
Top 20: 16 Marvel, 2 DC (both DKIII, only one in top 10)
Top 100: 61 Marvel, 32 DC
I'm not going to take the time to see what market share would look like for last year with all Star Wars books removed, so this is an incomplete picture, but it looks like things were significantly more lopsided in Marvel's favor compared to 2014 or 2013 even without the Star Wars books.