Jan ( N = 266 )

Feb ( N = 435 )

Mar ( N = 480 )

Apr ( N = 462 )

May ( N = 495 )

Jun ( N = 307 )

Jul ( N = 316 )

Aug ( N = 440 )

Sep ( N = 406 )

Oct ( N = 359 )

Nov ( N = 419 )

Dec ( N = 478 )