Table: elvis_singles_2
Columns: year
bb_hot
bb_cw
bb_ac
cb_cw

Question: What was the CB CW for the year of 1982?
SQL: SELECT "cb_cw" FROM elvis_singles_2 WHERE "year" = 1982

Question: What is the most current year that had a BB CW of 78?
SQL: SELECT MAX("year") FROM elvis_singles_2 WHERE "bb_cw" = '78'