Jan ( N = 385 )

Feb ( N = 558 )

Mar ( N = 657 )

Apr ( N = 539 )

May ( N = 505 )

Jun ( N = 405 )

Jul ( N = 568 )

Aug ( N = 604 )

Sep ( N = 540 )

Oct ( N = 605 )

Nov ( N = 724 )

Dec ( N = 815 )