Table: region_populations
Columns: year
population_region_total
population_mareeba
population_atherton
population_herberton
population_eacham

Question: How many figures are given for the region's total in 1947?
SQL: SELECT COUNT("population_region_total") FROM region_populations WHERE "year" = 1947

Question: What was the smallest population figure for Mareeba?
SQL: SELECT MIN("population_mareeba") FROM region_populations