CREATE TABLE table_name_84 (total_viewers VARCHAR, share VARCHAR, bbc_one_weekly_ranking VARCHAR)

What is the total number of total viewers with a share of 18.8% and a weekly ranking under 16?
SELECT COUNT(total_viewers) FROM table_name_84 WHERE share = "18.8%" AND bbc_one_weekly_ranking < 16
SELECT COUNT("total_viewers") FROM "table_name_84" WHERE "18.8%" = "share" AND "bbc_one_weekly_ranking" < 16