CREATE TABLE table_20830 ("Children/Women over 15" FLOAT, "Oblast\\\\Age of women" 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, "70+" FLOAT)

If 70+ is 2554, what is the 25 to 29 amount?
SELECT "25 to 29" FROM table_20830 WHERE "70+" = '2554'
SELECT "25 to 29" FROM "table_20830" WHERE "70+" = '2554'