CIPA released the latest data for Interchangeable Lens Cameras and the picture is still not good with a significant drop in shipments in May 2016. As to mirrorless vs. dSLR, mirrorless shipments are slipping to the Americas, now down to 1 out of 10 in the latest period. Globally mirrorless is closer to 1 of 5.
Full data here: http://www.cipa.jp/stats/dc_e.html
Full data here: http://www.cipa.jp/stats/dc_e.html