Jan ( N = 504 )

Feb ( N = 335 )

Mar ( N = 798 )

Apr ( N = 514 )

May ( N = 262 )

Jun ( N = 297 )

Jul ( N = 860 )

Aug ( N = 930 )

Sep ( N = 900 )

Oct ( N = 930 )

Nov ( N = 898 )

Dec ( N = 931 )