human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Average population (x 1000), Live births, Deaths, Natural change, Crude birth rate (per 1000), Crude death rate (per 1000), Natural change (per 1000)
###Question: Which Average population (x 1000) has a Crude death rate (per 1000) smaller than 10.9, and a Crude birth rate (per 1000) smaller than 19.7, and a Natural change (per 1000) of 8.7, and Live births of 54 263?
gpt
SELECT Average population (x 1000) FROM table WHERE Crude death rate (per 1000) < 10.9 AND Crude birth rate (per 1000) < 19.7 AND Natural change (per 1000) = 8.7 AND Live births = 54 263