ULS Transaction Volume by Month

Month19992000200120022003200420052006200720082009201020112012201320142015
Jan 6,6769,46211,10011,98414,68711,83019,60619,84312,99416,01310,8768,74010,39111,77213,87212,049
Feb 8,49912,46010,12812,19912,85411,10610,26414,27515,32712,99010,8439,89311,90011,85213,04312,466
Mar 11,70612,93519,19712,96215,09813,57814,88523,04214,20914,38315,14012,91312,99013,81714,87713,343
Apr 13,06711,75314,55613,06716,53410,95311,11316,62114,66713,23013,68011,87611,41713,01414,20912,735
May 21,10110,64214,01412,66111,62410,51113,16816,16713,44711,78812,20710,75913,07813,42714,05512,340
Jun 28,09410,50211,48012,09913,34911,60912,11613,86311,70910,69113,85111,06410,82011,31014,02512,091
Jul6,09311,5109,3959,90012,16911,8788,46613,52113,06511,4049,6029,5429,7179,62912,41213,37010,160
Aug3,52510,69610,7139,43310,74211,4369,54913,48112,81111,21610,3658,9928,98410,05911,57510,76610,028
Sep5,25012,1269,2348,2578,79113,9249,23012,38310,4289,5899,4548,4499,1328,5529,71110,328 
Oct6,9089,52311,08311,10011,7459,5607,16812,64212,93710,44210,2748,8459,04610,38510,16611,582 
Nov7,31110,1926,9409,4369,9919,5259,13618,95413,13111,3619,9087,44610,3529,98813,05111,269 
Dec8,51010,4507,90110,11710,60210,3378,17211,93210,64310,90610,4619,2159,0729,7099,8369,569 
Total37,597153,640123,020138,718139,012150,806121,308164,065176,826147,271139,159129,086121,548128,918141,943171,15375,024


The above data shows the count of records, in the ULS data base for the given month that have the 'last_action_date' field in the the HD table within that month. The data for July 1999 shows only transactions beginning July 15, 1999, the date the FCC cutover the ULS system for the Amateur Radio Service.