For anyone who's curious, these seem to be the stats for total applications for TRV first then approved applications second for Philippines and a couple of other countries. So it appears that between 18-30 percent of the applications are accepted in the past few years for Philippines and India is similar. Lots of people coming from China and over 50% approved.
Source Countries - Applications Received for Temporary Residents (in Persons)
Country of Citizenship CALENDAR YEAR
2012 2013 2014 2015 2016
China, People's Rep. 370,683 409,010 526,206 591,021 656,344
India 261,133 261,922 289,378 323,704 408,947
Philippines 128,637 120,249 116,831 107,454 115,956
Top Source Countries - Visitor Visas (V-1 Counterfoil Only) Approved by IRCC (in Persons)
Country of Citizenship CALENDAR YEAR
2012 2013 2014 2015 2016
China, People's Rep.145,798 181,554 269,087 315,185 350,949
India 97,657 92,691 110,911 128,739 148,109
Philippines 23,093 24,144 27,540 28,219 34,946