CREATE TABLE table_93 ("Season" FLOAT, "Driver" CLOB, "Team" CLOB, "Engine" CLOB, "Poles" FLOAT, "Wins" FLOAT, "Podiums" FLOAT, "Points" CLOB, "Margin of defeat" CLOB)

How many seasons was clay regazzoni the driver?
SELECT COUNT("Season") FROM table_93 WHERE "Driver" = 'Clay Regazzoni'
SELECT COUNT("Season") FROM "table_93" WHERE "Driver" = 'Clay Regazzoni'