Jan ( N = 513 )

Feb ( N = 530 )

Mar ( N = 649 )

Apr ( N = 736 )

May ( N = 810 )

Jun ( N = 771 )

Jul ( N = 847 )

Aug ( N = 763 )

Sep ( N = 579 )

Oct ( N = 577 )

Nov ( N = 511 )

Dec ( N = 506 )