What is the population per km in Smoky Lake County?
CREATE TABLE table_73713 (
    "Name" text,
    "Municipal district" text,
    "Population (2011)" real,
    "Population (2006)" real,
    "Change (%)" text,
    "Land area (km\u00b2)" text,
    "Population density (per km 2 )" text
)
SELECT "Population density (per km 2 )" FROM table_73713 WHERE "Municipal district" = 'Smoky Lake County'
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 is the population per km in Smoky Lake County? ### Input: CREATE TABLE table_73713 (
    "Name" text,
    "Municipal district" text,
    "Population (2011)" real,
    "Population (2006)" real,
    "Change (%)" text,
    "Land area (km\u00b2)" text,
    "Population density (per km 2 )" text
) ### Response: SELECT "Population density (per km 2 )" FROM table_73713 WHERE "Municipal district" = 'Smoky Lake County'