Investors increased the amount of money they put into mutual funds last month than they did a year earlier, according to data compiled by the Investment Funds Institute of Canada. The industry group said net sales totalled $1.72 billion while net sales of long-term funds were $2.19 billion and net redemptions of money market funds were $473.7 million. Total sales slipped from $2.29 billion in August, but grew significantly from $205.1 million in net redemptions in September 2011. By asset class, balanced funds led the way with $1.96 billion in net sales.