 However, this statistic reflects sampling bias, as the only tally sheets selected for study were those in which the MAS received 90% or more of the vote as well as those in which the MAS received at least 77% of the vote and which only appeared in the official count.On 21 December, the Technical Mission of Electoral Experts sent by the European Union published a 67-page report that made similar observations and conclusions to those of the OAS.They noted that "there were minutes with an unusually high number of null votes, blank votes and a hundred percent participation of voters in a series of polling stations" and highlighted the general failure of the TSE to declare these irregularities.