Do not ignore application categories.

.gitignore

@@ -100,6 +100,9 @@ data/external/*
 !/data/external/wiki_tz.csv
 !/data/external/main_study_usernames.csv
 !/data/external/timezone.csv
+!/data/external/play_store_application_genre_catalogue.csv
+!/data/external/play_store_categories_count.csv
+
 
 data/raw/*
 !/data/raw/.gitkeep

data/external/play_store_categories_count.csv

@@ -0,0 +1,44 @@
+genre,n
+System,307
+Tools,85
+Productivity,70
+Health & Fitness,60
+Finance,54
+Shopping,38
+Music & Audio,37
+Communication,34
+Lifestyle,33
+Education,25
+News & Magazines,24
+Maps & Navigation,23
+Entertainment,20
+Business,18
+Travel & Local,18
+Social,16
+Weather,15
+Books & Reference,14
+Food & Drink,14
+Sports,14
+Puzzle,13
+Photography,12
+Video Players & Editors,11
+Card,9
+Personalization,8
+Casual,7
+Board,5
+Medical,5
+Strategy,4
+House & Home,3
+Trivia,3
+Word,3
+Adventure,2
+Art & Design,2
+Auto & Vehicles,2
+Dating,2
+Role Playing,2
+Simulation,2
+"Board,Brain Games",1
+"Entertainment,Music & Video",1
+Parenting,1
+Racing,1
+STRAW,1