Jan ( N = 390 )

Feb ( N = 373 )

Mar ( N = 390 )

Apr ( N = 378 )

May ( N = 403 )

Jun ( N = 386 )

Jul ( N = 406 )

Aug ( N = 400 )

Sep ( N = 538 )

Oct ( N = 700 )

Nov ( N = 675 )

Dec ( N = 610 )