Task: Question Answering
Input (English): Context: The Conventional Purchase Index decreased 0.3 percent while the Government Purchase Index ( largely FHA ) increased 7.2 percent . The four week moving average for the seasonally adjusted Market Index is down 4.2 percent to 466.3 from 486.5 . The four week moving average is down 3.7 percent to 330.0 from 342.6 for the Purchase Index , while this average is down 4.8 percent to 1266.0 from 1330.3 for the Refinance Index . 
Question: What might be the reason behind the many indices being down on four week moving averages ?
Output (English): The demand for the market might be low .