Jan ( N = 836 )

Feb ( N = 701 )

Mar ( N = 514 )

Apr ( N = 517 )

May ( N = 264 )

Jun ( N = 666 )

Jul ( N = 298 )

Aug ( N = 205 )

Sep ( N = 17 )

Jan ( N = None )

Feb ( N = 133 )

Mar ( N = 540 )

Apr ( N = 779 )

May ( N = 825 )

Jun ( N = 798 )

Jul ( N = 769 )

Aug ( N = 792 )

Sep ( N = 547 )

Oct ( N = 312 )

Nov ( N = 474 )

Dec ( N = 779 )