Jan ( N = 251 )

Feb ( N = 292 )

Mar ( N = 269 )

Apr ( N = 430 )

May ( N = 549 )

Jun ( N = 558 )

Jul ( N = 560 )

Aug ( N = 534 )

Sep ( N = 412 )

Oct ( N = 362 )

Nov ( N = 180 )

Dec ( N = 63 )