CREATE TABLE table_77333 ("C/W 15+" FLOAT, "Oblast\\\\Age" TEXT, "15 to 17" FLOAT, "18 to 19" FLOAT, "20 to 24" FLOAT, "25 to 29" FLOAT, "30 to 34" FLOAT, "35 to 39" FLOAT, "40 to 44" FLOAT, "45 to 49" FLOAT, "50 to 54" FLOAT, "55 to 59" FLOAT, "60 to 64" FLOAT, "65 to 69" FLOAT)

With a 20 to 24 less than 676, and a 15 to 17 greater than 16, and a 60 to 64 less than 3,142, what is the average 45 to 49?
SELECT AVG("45 to 49") FROM table_77333 WHERE "20 to 24" < '676' AND "15 to 17" > '16' AND "60 to 64" < '3,142'
SELECT AVG("45 to 49") FROM "table_77333" WHERE "15 to 17" > '16' AND "20 to 24" < '676' AND "60 to 64" < '3,142'