Jan ( N = 495 )

Feb ( N = 143 )

Mar ( N = 23 )

Apr ( N = 406 )

May ( N = 496 )

Jun ( N = 368 )

Jul ( N = 432 )

Aug ( N = 496 )

Sep ( N = 479 )

Oct ( N = 495 )

Nov ( N = 479 )

Dec ( N = 495 )