What is the average 2012 civil liberties value associated with a 2011 status of not free, political rights 2012 over 6, and political rights 2011 over 7?
CREATE TABLE table_75638 (
    "Country" text,
    "Political Rights 2010" real,
    "Civil Liberties 2010" real,
    "Status 2010" text,
    "Political Rights 2011" real,
    "Civil Liberties 2011" real,
    "Status 2011" text,
    "Political Rights 2012" real,
    "Civil Liberties 2012" real,
    "Status 2012" text,
    "Political Rights 2013" real,
    "Civil Liberties 2013" real,
    "Status 2013" text
)
SELECT AVG("Civil Liberties 2012") FROM table_75638 WHERE "Status 2011" = 'not free' AND "Political Rights 2012" > '6' AND "Political Rights 2011" > '7'
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 average 2012 civil liberties value associated with a 2011 status of not free, political rights 2012 over 6, and political rights 2011 over 7? ### Input: CREATE TABLE table_75638 (
    "Country" text,
    "Political Rights 2010" real,
    "Civil Liberties 2010" real,
    "Status 2010" text,
    "Political Rights 2011" real,
    "Civil Liberties 2011" real,
    "Status 2011" text,
    "Political Rights 2012" real,
    "Civil Liberties 2012" real,
    "Status 2012" text,
    "Political Rights 2013" real,
    "Civil Liberties 2013" real,
    "Status 2013" text
) ### Response: SELECT AVG("Civil Liberties 2012") FROM table_75638 WHERE "Status 2011" = 'not free' AND "Political Rights 2012" > '6' AND "Political Rights 2011" > '7'