Table 5. Number of Companies Covered in the 2006 Survey of IT and IT-Enabled Services Report
Category	Total Coverage	n1	n2	n3	n4	n5	Total Response	Response Rate               (in percent)
Contact Center	107	22	44	9	9	23	75	70.1
Transcription	55	3	19	8	5	20	30	54.5
Animation	36	5	2	9	3	17	16	44.4
Software Development	200	33	44	18	19	86	95	47.5
Other BPOs	153	23	61	15	10	44	99	64.7
Total	551	86	170	59	46	190	315	57.2
Note:
n1= number of companies which responded to the survey
n2= number of companies registered with  Board of Investments (BOI) and  Philippine Economic Zone Authority (PEZA)
n3= number of companies whose revenue data were taken from the Securities and Exchange Commission (SEC)
n4= number of non-reponding companies in the 2006 survey, but whose 2005 data are available
n5= number of non-responding companies, including BOI companies which started operations before end 2nd Qrtr. of 2006.