Jan ( N = 576 )

Feb ( N = 527 )

Mar ( N = 675 )

Apr ( N = 748 )

May ( N = 830 )

Jun ( N = 734 )

Jul ( N = 718 )

Aug ( N = 712 )

Sep ( N = 657 )

Oct ( N = 627 )

Nov ( N = 515 )

Dec ( N = 538 )