Jan ( N = 292 )

Feb ( N = 306 )

Mar ( N = 380 )

Apr ( N = 425 )

May ( N = 465 )

Jun ( N = 450 )

Jul ( N = 465 )

Aug ( N = 442 )

Sep ( N = 400 )

Oct ( N = 357 )

Nov ( N = 257 )

Dec ( N = 279 )