Jan ( N = 630 )

Feb ( N = 554 )

Mar ( N = 624 )

Apr ( N = 598 )

May ( N = 632 )

Jun ( N = 606 )

Jul ( N = 637 )

Aug ( N = 629 )

Sep ( N = 591 )

Oct ( N = 602 )

Nov ( N = 616 )

Dec ( N = 610 )