The Federal Retirement Thrift Investment Board has a hit on its hands with its year-old lifecycle funds. Already, 9% of government workers have added to their portfolios the so-called “L Funds,” which are intended to make it easier to plan for retirements. The sign-up rate has “blown the doors off our wildest expectations,” Executive Director Gary Amelio told the Washington Post, which noted that the board had projected 5% participation in the first two years of the program. According to the Post, an estimated 330,000 government employees have put $11.6 billion, or 6%of the plan’s total assets, into the offerings. The L funds in general have been performing well, returning between 5% and 8.98% since launching last Aug. 1.