Jan ( N = 495 )

Feb ( N = 429 )

Mar ( N = 458 )

Apr ( N = 474 )

May ( N = 494 )

Jun ( N = 467 )

Jul ( N = 486 )

Aug ( N = 494 )

Sep ( N = 471 )

Oct ( N = 477 )

Nov ( N = 449 )

Dec ( N = 489 )