"...The number of Thrift Savings Plan participants with Roth accounts swelled to 51,354 in September, the board governing the plan said Monday.
That’s a 28 percent increase from the roughly 40,000 federal employees and Marines who had signed up for the new Roth option by the end of August, the option’s fourth month in existence. Those participants have so far deposited nearly $50 million in their Roth option, the Federal Retirement Thrift Investment Board said. That’s up 66 percent from nearly $30 million in Roth accounts in August..."