Jan ( N = 270 )
Feb ( N = 133 )
Mar ( N = 424 )
Apr ( N = 490 )
May ( N = 304 )
Jun ( N = 270 )
Jul ( N = 1135 )
Aug ( N = 1001 )
Sep ( N = 1086 )
Oct ( N = 1147 )
Nov ( N = 1094 )
Dec ( N = 1139 )