Jan ( N = None )

Feb ( N = None )

Mar ( N = None )

Apr ( N = 24 )

May ( N = 497 )

Jun ( N = 1182 )

Jul ( N = 586 )

Aug ( N = 550 )

Sep ( N = 545 )

Oct ( N = 466 )

Oct ( N = None )

Nov ( N = None )

Dec ( N = None )