Jan ( N = 397 )
Feb ( N = 363 )
Mar ( N = 403 )
Apr ( N = 388 )
May ( N = 376 )
Jun ( N = 388 )
Jul ( N = 389 )
Aug ( N = 401 )
Sep ( N = 388 )
Oct ( N = 401 )
Nov ( N = 376 )
Dec ( N = 403 )