Jan ( N = 485 )

Feb ( N = 422 )

Mar ( N = 425 )

Apr ( N = 417 )

May ( N = 493 )

Jun ( N = 465 )

Jul ( N = 488 )

Aug ( N = 474 )

Sep ( N = 445 )

Oct ( N = 491 )

Nov ( N = 478 )

Dec ( N = 430 )