Jan ( N = 520 )

Feb ( N = 574 )

Mar ( N = 676 )

Apr ( N = 734 )

May ( N = 818 )

Jun ( N = 732 )

Jul ( N = 726 )

Aug ( N = 723 )

Sep ( N = 623 )

Oct ( N = 559 )

Nov ( N = 555 )

Dec ( N = 535 )