Jan ( N = 537 )
Feb ( N = 713 )
Mar ( N = 731 )
Apr ( N = 811 )
May ( N = 831 )
Jun ( N = 826 )
Jul ( N = 785 )
Aug ( N = 782 )
Sep ( N = 724 )
Oct ( N = 620 )
Nov ( N = 546 )
Dec ( N = 479 )