Jan ( N = 494 )

Feb ( N = 476 )

Mar ( N = 396 )

Apr ( N = 453 )

May ( N = 492 )

Jun ( N = 446 )

Jul ( N = 505 )

Aug ( N = 480 )

Sep ( N = 468 )

Oct ( N = 576 )

Nov ( N = 545 )

Dec ( N = 495 )