Jan ( N = 403 )
Feb ( N = 361 )
Mar ( N = 402 )
Apr ( N = 389 )
May ( N = 403 )
Jun ( N = 387 )
Jul ( N = 389 )
Aug ( N = 400 )
Sep ( N = 389 )
Oct ( N = 400 )
Nov ( N = 390 )
Dec ( N = 388 )