human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: State, Literacy Rate (%) - [2013 Estimate], Literacy Rate (%) - 2001 Census, Literacy Rate (%) - 2011 Census, % Increase
###Question: What is the average increase in literacy for the states that had a rate higher than 73.2% in 2011, less than 68.81% in 2001, and an estimate of 76.8% for 2013?
gpt
SELECT % Increase FROM table WHERE Literacy Rate (%) - 2011 Census > 73.2 AND Literacy Rate (%) - 2001 Census < 68.81 AND Literacy Rate (%) - [2013 Estimate] = 76.8