Jan ( N = 613 )

Feb ( N = 579 )

Mar ( N = 608 )

Apr ( N = 600 )

May ( N = 590 )

Jun ( N = 577 )

Jul ( N = 600 )

Aug ( N = 619 )

Sep ( N = 591 )

Oct ( N = 616 )

Nov ( N = 597 )

Dec ( N = 556 )