Number of participant establishments and event records returned, 2006 and 2014 (Random sample only) Random Sample Random Sample 2014 2006 Pre-school Nos. participant pre-schools 13 Pre-schools 13 Pre-schools On-site 121 243 Off-site 9 13 Primary Nos. of participant schools 8 Primaries 26 Primaries Non-residential events 111 294 Residential trips 2 9 Secondary Nos. of participant schools 9 Secondaries 14 Secondaries Non-residential events 102 142 Residential trips 14 36 Note 1.