What was the smallest population figure for Mareeba?
CREATE TABLE table_72315 (
    "Year" real,
    "Population (Region total)" real,
    "Population (Mareeba)" real,
    "Population (Atherton)" real,
    "Population (Herberton)" real,
    "Population (Eacham)" real
)
SELECT MIN("Population (Mareeba)") FROM table_72315
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What was the smallest population figure for Mareeba? ### Input: CREATE TABLE table_72315 (
    "Year" real,
    "Population (Region total)" real,
    "Population (Mareeba)" real,
    "Population (Atherton)" real,
    "Population (Herberton)" real,
    "Population (Eacham)" real
) ### Response: SELECT MIN("Population (Mareeba)") FROM table_72315