Jan ( N = 210 )

Feb ( N = 296 )

Mar ( N = 509 )

Apr ( N = 515 )

May ( N = 608 )

Jun ( N = 566 )

Jul ( N = 586 )

Aug ( N = 575 )

Sep ( N = 540 )

Oct ( N = 589 )

Nov ( N = 552 )

Dec ( N = 448 )