Table schema:
CREATE TABLE table_name_88 (natural_change VARCHAR, crude_death_rate__per_1000_ VARCHAR, deaths VARCHAR)

Question: Which Natural change has a Crude death rate (per 1000) larger than 9, and Deaths of 40 399?
SQL: SELECT natural_change FROM table_name_88 WHERE crude_death_rate__per_1000_ > 9 AND deaths = "40 399"