Jan ( N = 401 )

Feb ( N = 516 )

Mar ( N = 536 )

Apr ( N = 528 )

May ( N = 624 )

Jun ( N = 616 )

Jul ( N = 597 )

Aug ( N = 609 )

Sep ( N = 583 )

Oct ( N = 640 )

Nov ( N = 574 )

Dec ( N = 584 )