Jan ( N = 159 )

Feb ( N = 145 )

Mar ( N = 70 )

Apr ( N = 51 )

May ( N = 65 )

Jun ( N = 220 )

Jul ( N = 279 )

Aug ( N = 279 )

Sep ( N = 266 )

Oct ( N = 279 )

Nov ( N = 270 )

Dec ( N = 280 )