Jan ( N = 132 )
Feb ( N = 48 )
Mar ( N = 387 )
Apr ( N = 219 )
May ( N = 613 )
Jun ( N = 336 )
Jul ( N = 326 )
Aug ( N = 437 )
Sep ( N = 376 )
Oct ( N = 296 )
Nov ( N = 36 )
Dec ( N = 531 )