Jan ( N = 499 )

Feb ( N = 490 )

Mar ( N = 647 )

Apr ( N = 741 )

May ( N = 844 )

Jun ( N = 865 )

Jul ( N = 859 )

Aug ( N = 798 )

Sep ( N = 697 )

Oct ( N = 632 )

Nov ( N = 516 )

Dec ( N = 502 )