What is the highest Area that has a Mean Household Size of 3.1 persons?
CREATE TABLE table_11106 (
    "Suburb" text,
    "Population (in 2008)" real,
    "Median age (in 2006)" text,
    "Mean household size (in 2006)" text,
    "Area (km\u00b2)" real,
    "Density (/km\u00b2)" real,
    "Date first settled as a suburb" real,
    "Gazetted as a Division Name" text
)
SELECT MAX("Area (km\u00b2)") FROM table_11106 WHERE "Mean household size (in 2006)" = '3.1 persons'
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 highest Area that has a Mean Household Size of 3.1 persons? ### Input: CREATE TABLE table_11106 (
    "Suburb" text,
    "Population (in 2008)" real,
    "Median age (in 2006)" text,
    "Mean household size (in 2006)" text,
    "Area (km\u00b2)" real,
    "Density (/km\u00b2)" real,
    "Date first settled as a suburb" real,
    "Gazetted as a Division Name" text
) ### Response: SELECT MAX("Area (km\u00b2)") FROM table_11106 WHERE "Mean household size (in 2006)" = '3.1 persons'