Jan ( N = 284 )
Feb ( N = 135 )
Mar ( N = 397 )
Apr ( N = 512 )
May ( N = 531 )
Jun ( N = 489 )
Jul ( N = 545 )
Aug ( N = 531 )
Sep ( N = 525 )
Oct ( N = 509 )
Nov ( N = 464 )
Dec ( N = 516 )