Stocks closed their worst two-week slide since November with a selloff on Friday as disappointing China growth data sparked worries the global recovery was flagging.

Based on the latest available data, the Dow Jones industrial average <.DJI> was down 136.99 points, or 1.05 percent, to end unofficially at 12,849.59. The Standard & Poor's 500 Index <.SPX> was down 17.31 points, or 1.25 percent, to finish unofficially at 1,370.26. The Nasdaq Composite Index <.IXIC> was down 44.22 points, or 1.45 percent, to close unofficially at 3,011.33.

For this week, the Dow was down 1.6 percent, the S&P 500 was down 2 percent and the Nasdaq was down 2.2 percent. Those losses were piled on top of the declines in the previous holiday-shortened week, when the Dow fell 1.1 percent, the S&P 500 slid 0.7 percent and the Nasdaq dropped 0.4 percent.

(Reporting By Caroline Valetkevitch; Editing by Jan Paschal)