CREATE TABLE table_3555 ("Year" FLOAT, "Timeslot" CLOB, "Network" CLOB, "Episodes" FLOAT, "Viewers  ( in millions/overall ) " CLOB, "Viewers  ( in millions/target group 14-49 ) " CLOB, "Market share  ( overall ) " CLOB, "Market share  ( target group 14-49 ) " CLOB)

How many times was the viewer target group 0.63?
SELECT COUNT("Market share (target group 14-49)") FROM table_3555 WHERE "Viewers (in millions/target group 14-49)" = '0.63'
SELECT COUNT("Market share (target group 14-49)") FROM "table_3555" WHERE "Viewers (in millions/target group 14-49)" = '0.63'