CREATE TABLE table_203_94 (id DECIMAL, "year" DECIMAL, "player" TEXT, "country" TEXT, "score" TEXT, "to par" DECIMAL, "margin\ of victory" TEXT, "course" TEXT, "location" TEXT, "purse  ( $ ) " DECIMAL, "winner's\ share  ( $ ) " DECIMAL)

count the number of times the western open has been held at the cog hill golf and country club since 2007 .
SELECT COUNT(*) FROM table_203_94 WHERE "course" = 'cog hill golf & country club'
SELECT COUNT(*) FROM "table_203_94" WHERE "course" = 'cog hill golf & country club'