Jan ( N = 399 )

Feb ( N = 518 )

Mar ( N = 586 )

Apr ( N = 610 )

May ( N = 588 )

Jun ( N = 921 )

Jul ( N = 944 )

Aug ( N = 905 )

Sep ( N = 797 )

Oct ( N = 740 )

Nov ( N = 658 )

Dec ( N = 648 )