Jan ( N = 590 )

Feb ( N = 551 )

Mar ( N = 435 )

Apr ( N = 593 )

May ( N = 619 )

Jun ( N = 580 )

Jul ( N = 538 )

Aug ( N = 462 )

Sep ( N = 599 )

Oct ( N = 620 )

Nov ( N = 548 )

Dec ( N = 620 )