CREATE TABLE table_19510 ("Rank" FLOAT, "State" TEXT, "Revenue  ( millions ) " TEXT, "Population" FLOAT, "Revenue per capita" TEXT, "Spending  ( millions ) " TEXT, "Spending per capita" TEXT, "Net contribution per capita" TEXT, "Presidential majority 2000/2004" TEXT, "Presidential majority 2008" TEXT, "Presidential majority 2012" TEXT, "Obamacare: Fed/ State/ Partnership" TEXT)

How many times was revenue in millions recorded when the spending per capita was $6,736?
SELECT COUNT("Revenue (millions)") FROM table_19510 WHERE "Spending per capita" = '$6,736'
SELECT COUNT("Revenue (millions)") FROM "table_19510" WHERE "Spending per capita" = '$6,736'