CREATE TABLE table_30419 ("Series" TEXT, "Seasons" FLOAT, "Races" FLOAT, "Poles" FLOAT, "Wins" FLOAT, "Podiums  ( Non-win ) " FLOAT, "Point Finishes  ( Non-podium ) " FLOAT, "Teams" FLOAT, "Total Points" FLOAT, "Championships" FLOAT, "Best Finish  ( Championship ) " TEXT)

How many seasons are there with Formula Holden?
SELECT COUNT("Seasons") FROM table_30419 WHERE "Series" = 'Formula Holden'
SELECT COUNT("Seasons") FROM "table_30419" WHERE "Series" = 'Formula Holden'