Jan ( N = 370 )

Feb ( N = 413 )

Mar ( N = 372 )

Apr ( N = 360 )

May ( N = 502 )

Jun ( N = 348 )

Jul ( N = 373 )

Aug ( N = 370 )

Sep ( N = 350 )

Oct ( N = 370 )

Nov ( N = 360 )

Dec ( N = 372 )