Jan ( N = 518 )

Feb ( N = 529 )

Mar ( N = 651 )

Apr ( N = 744 )

May ( N = 845 )

Jun ( N = 482 )

Jul ( N = 348 )

Aug ( N = 399 )

Sep ( N = 544 )

Oct ( N = 599 )

Nov ( N = 527 )

Dec ( N = 510 )