CREATE TABLE table_name_61 (natural_change__per_1000_ VARCHAR(255), crude_death_rate__per_1000_ VARCHAR(255))
what is the natural change (per 1000) when the crude death rate (per 1000) is 10?
    
SQL: SELECT natural_change__per_1000_ FROM table_name_61 WHERE crude_death_rate__per_1000_ = 10