SOURCES: KEPIOS ANALYSIS; COMPANY ADVERTISING RESOURCES AND ANNOUNCEMENTS; CNNIC; BETA RESEARCH CENTER; MEDIASCOPE; OCDH; ARAB SOCIAL MEDIA REPORT; TECHRASA; CAFEBAZAAR. M"DENOTES MILLIONS(E.G."1.23 M"=1,23O,OOO), AND"B"DENOTESBILLIONS(E.G "1.23 B" = 1,23O,00O,00O). WHERE NO LETTER IS PRESENT, VALUES ARE SHOWN AS IS. ADVISORY: SOCIAL MEDIA USER IDENTITIES MAY NOT REPRESENT UNIQUE INDIVIDUALS. COMPARABILITY: SOURCE AND METHODOLOGY CHANGES; BASE REVISIONS. SEE NOTES ON DATA