Administrative Appeals Office(AAO) released data on all appeals from 2011 to 2014. The left columns show the type of application; FY 2011 means fiscal year 2011; then the chart lists dismiss; sustain and remand.
AAO is the highest office inside the US Immigration for certain types of applications. Other types of applications not covered in this list are within the jurisdiction of the Board of Immigration Appeals(BIA). In some cases an applicant/petitioner may take the case to federal court if they lose at AAO or BIA level.