NSArray anInstArray = anApp.instanceArray();
int i;
int anInstArrayCount = anInstArray.count();
for (i = 0; i < anInstArrayCount; i++) {
MInstance anInstance = (MInstance)anInstArray.objectAtIndex(i);
NSDictionary aStatsDict = anInstance.statistics();
if (aStatsDict != null) {
try {
String aValue = (String) aStatsDict.valueForKey("transactions");