CREATE TABLE table_78358 ("Year" FLOAT, "Network" CLOB, "Lap-by-lap" CLOB, "s Color commentator" CLOB, "Pre-Race Host" CLOB, "Pre-Race Analyst ( s ) " CLOB, "Ratings" CLOB, "Viewers" CLOB)

Which Year is the lowest when the Viewers are 13.7 million?
SELECT MIN("Year") FROM table_78358 WHERE "Viewers" = '13.7 million'
SELECT MIN("Year") FROM "table_78358" WHERE "Viewers" = '13.7 million'