CREATE TABLE table_18980 ("Game" FLOAT, "Date" TEXT, "Team" TEXT, "Score" TEXT, "High points" TEXT, "High rebounds" TEXT, "High assists" TEXT, "Location Attendance" TEXT, "Record" TEXT)

How many people had the high rebound total when the team was 19-13?
SELECT COUNT("High rebounds") FROM table_18980 WHERE "Record" = '19-13'
SELECT COUNT("High rebounds") FROM "table_18980" WHERE "Record" = '19-13'