Jan ( N = 612 )

Feb ( N = 580 )

Mar ( N = 607 )

Apr ( N = 600 )

May ( N = 589 )

Jun ( N = 576 )

Jul ( N = 599 )

Aug ( N = 618 )

Sep ( N = 590 )

Oct ( N = 616 )

Nov ( N = 596 )

Dec ( N = 556 )