Jan ( N = 514 )

Feb ( N = 500 )

Mar ( N = 633 )

Apr ( N = 675 )

May ( N = 768 )

Jun ( N = 758 )

Jul ( N = 794 )

Aug ( N = 667 )

Sep ( N = 618 )

Oct ( N = 580 )

Nov ( N = 517 )

Dec ( N = 493 )