Jan ( N = 833 )
Feb ( N = 692 )
Mar ( N = 481 )
Apr ( N = 469 )
May ( N = 240 )
Jun ( N = 633 )
Jul ( N = 282 )
Aug ( N = 204 )
Jan ( N = None )
Feb ( N = 132 )
Mar ( N = 540 )
Apr ( N = 769 )
May ( N = 826 )
Jun ( N = 797 )
Jul ( N = 765 )
Aug ( N = 795 )
Sep ( N = 527 )
Oct ( N = 311 )
Nov ( N = 416 )
Dec ( N = 755 )