Jan ( N = 577 )

Feb ( N = 517 )

Mar ( N = 564 )

Apr ( N = 496 )

May ( N = 540 )

Jun ( N = 527 )

Jul ( N = 535 )

Aug ( N = 522 )

Sep ( N = 505 )

Oct ( N = 534 )

Nov ( N = 577 )

Dec ( N = 455 )