Jan ( N = 554 )

Feb ( N = 497 )

Mar ( N = 545 )

Apr ( N = 533 )

May ( N = 552 )

Jun ( N = 327 )

Jul ( N = 506 )

Aug ( N = 534 )

Sep ( N = 512 )

Oct ( N = 410 )

Nov ( N = 477 )

Dec ( N = 450 )