Jan ( N = 396 )

Feb ( N = 403 )

Mar ( N = 411 )

Apr ( N = 420 )

May ( N = 417 )

Jun ( N = 420 )

Jul ( N = 433 )

Aug ( N = 373 )

Sep ( N = 410 )

Oct ( N = 430 )

Nov ( N = 401 )

Dec ( N = 610 )