CREATE TABLE table_42586 ("Average population  ( x 1 , 000 ) " TEXT, "Live births" TEXT, "Deaths" TEXT, "Natural change" TEXT, "Migration" TEXT, "Crude birth rate  ( per 1 , 000 ) " FLOAT, "Crude death rate  ( per 1 , 000 ) " FLOAT, "Natural change  ( per 1 , 000 ) " FLOAT, "Migration  ( per 1 , 000 ) " FLOAT)

How many Crude death rate (per 1,000) has a Migration (per 1,000) larger than -5.06, and a Natural change (per 1,000) larger than 7.06? Question 1
SELECT AVG("Crude death rate (per 1,000)") FROM table_42586 WHERE "Migration (per 1,000)" > '-5.06' AND "Natural change (per 1,000)" > '7.06'
SELECT AVG("Crude death rate (per 1,000)") FROM "table_42586" WHERE "Migration (per 1,000)" > '-5.06' AND "Natural change (per 1,000)" > '7.06'