Jan ( N = 255 )
Feb ( N = 287 )
Mar ( N = 360 )
Apr ( N = 403 )
May ( N = 463 )
Jun ( N = 429 )
Jul ( N = 461 )
Aug ( N = 445 )
Sep ( N = 386 )
Oct ( N = 336 )
Nov ( N = 256 )
Dec ( N = 149 )