Jan ( N = 549 )

Feb ( N = 489 )

Mar ( N = 541 )

Apr ( N = 516 )

May ( N = 523 )

Jun ( N = 503 )

Jul ( N = 527 )

Aug ( N = 403 )

Sep ( N = 509 )

Oct ( N = 538 )

Nov ( N = 508 )

Dec ( N = 513 )