CREATE TABLE table_71758 ("Date" FLOAT, "Category" TEXT, "Team" TEXT, "Rider 1" TEXT, "Rider 2" TEXT)

How many dates does the ladies category correspond to Rothaus-Cube?
SELECT COUNT("Date") FROM table_71758 WHERE "Category" = 'ladies' AND "Team" = 'rothaus-cube'
SELECT COUNT("Date") FROM "table_71758" WHERE "Category" = 'ladies' AND "Team" = 'rothaus-cube'