Jan ( N = 495 )
Feb ( N = 143 )
Mar ( N = 23 )
Apr ( N = 405 )
May ( N = 495 )
Jun ( N = 368 )
Jul ( N = 433 )
Aug ( N = 495 )
Sep ( N = 478 )
Oct ( N = 495 )
Nov ( N = 479 )
Dec ( N = 495 )