Table:
Net additions (losses)	% of penetration(2)(3)

August 31, 2019	August 31, 2019	August 31, 2018 (1)	August 31, 2019	August 31, 2018 (3)

Primary service units	901,446	16,981	20,251

Internet service customers	446,137	21,189	21,417	50.8	49.7

Video service customers	312,555	(4,697)	(6,760)	35.6	37.1

Telephony service customers	142,754	489	5,594	16.2	16.6

Return the merged cell regions in the provided table image. Your answer should be in the JSON format of {'top-left':(X, Y), 'bottom-right':(Z, W)}, where (X, Y) and (Z, W) represent the (row_id, column_id) coordinates of top-left cell and bottom-right cell, respectively. Note that row_id and column_id start from 1 instead of 0.

This table does not contain any merged cells.