Jan ( N = 610 )

Feb ( N = 576 )

Mar ( N = 603 )

Apr ( N = 628 )

May ( N = 616 )

Jun ( N = 630 )

Jul ( N = 645 )

Aug ( N = 622 )

Sep ( N = 578 )

Oct ( N = 634 )

Nov ( N = 531 )

Dec ( N = 539 )