Jan ( N = 591 )

Feb ( N = 551 )

Mar ( N = 435 )

Apr ( N = 593 )

May ( N = 619 )

Jun ( N = 580 )

Jul ( N = 537 )

Aug ( N = 463 )

Sep ( N = 599 )

Oct ( N = 619 )

Nov ( N = 546 )

Dec ( N = 620 )