Jan ( N = 451 )

Feb ( N = 402 )

Mar ( N = 440 )

Apr ( N = 429 )

May ( N = 447 )

Jun ( N = 454 )

Jul ( N = 474 )

Aug ( N = 485 )

Sep ( N = 458 )

Oct ( N = 488 )

Nov ( N = 50 )

Dec ( N = 30 )