The U.S. Government Accountability Office (GAO) recently released its bid protest statistics for fiscal year 2007. Of 335 decisions on the merits, the GAO sustained 91 protests. This represents a sustain rate of 27 percent, down slightly from the 29 percent sustain rate in fiscal year 2006. The number of protests filed increased to 1,411 cases, up 6 percent from the 1,327 cases in fiscal year 2006. For the fourth year in a row, the GAO also reported that there was no instance in which a federal agency did not fully implement a recommendation made by the GAO in connection with a bid protest. The statistics are available here