By The Associated PressSURPRISE: A big gain in the jobs market gave Wall Street reason to celebrate Friday. The Dow Jones industrial average punched through another milestone, 15,000, before easing back. The Standard and Poor's 500 index closed above 1,600 for the first time. THE NEWS: U.S. employers added 165,000 new workers in April and many more in February and March than previously estimated. The unemployment rate fell to the lowest level in four years, 7.5 percent. FINAL SCORE: The Dow rose 142.38 points to close at 14,973.96, up 1 percent. The S&P 500 index surged 16.83 points, also 1 percent, to 1,614.42.