Ok i dont know where ethnologue got their data but according to NSO census year 2000 which is the latest data we have versus the ethnologue data 1995
http://www.census.gov.ph/data/pressr...pr02178tx.html
Tagalog: 21,485,927
Cebuano: 10,030,667 + Bisaya/Binisaya: 5,778,435 = 15,809,102
Tagalog: 21,485,927
Cebuano incl. Bisaya/Binisaya: 15,809,102