Jan ( N = 31 )

Feb ( N = 28 )

Mar ( N = 313 )

Apr ( N = 751 )

May ( N = 713 )

Jun ( N = 675 )

Jul ( N = 725 )

Aug ( N = 775 )

Sep ( N = 750 )

Oct ( N = 775 )

Nov ( N = 333 )

Dec ( N = 773 )