Jan ( N = 603 )

Feb ( N = 552 )

Mar ( N = 617 )

Apr ( N = 584 )

May ( N = 614 )

Jun ( N = 585 )

Jul ( N = 568 )

Aug ( N = 545 )

Sep ( N = 595 )

Oct ( N = 580 )

Nov ( N = 601 )

Dec ( N = 616 )