Jan ( N = 156 )

Feb ( N = 158 )

Mar ( N = 315 )

Apr ( N = 347 )

May ( N = 589 )

Jun ( N = 621 )

Jul ( N = 587 )

Aug ( N = 565 )

Sep ( N = 470 )

Oct ( N = 284 )

Nov ( N = 164 )

Dec ( N = 246 )