Jan ( N = 55 )
Feb ( N = 398 )
Mar ( N = 148 )
Apr ( N = 53 )
May ( N = 46 )
Jun ( N = 259 )
Jul ( N = 40 )
Aug ( N = 527 )
Sep ( N = 28 )
Oct ( N = 12 )
Nov ( N = 33 )
Dec ( N = 18 )