Jan ( N = 580 )

Feb ( N = 446 )

Mar ( N = 452 )

Apr ( N = 567 )

May ( N = 540 )

Jun ( N = 415 )

Jul ( N = 431 )

Aug ( N = 445 )

Sep ( N = 401 )

Oct ( N = 495 )

Nov ( N = 464 )

Dec ( N = 491 )