Jan ( N = 541 )

Feb ( N = 504 )

Mar ( N = 558 )

Apr ( N = 306 )

May ( N = 558 )

Jun ( N = 532 )

Jul ( N = 558 )

Aug ( N = 558 )

Sep ( N = 351 )

Oct ( N = 180 )

Nov ( N = 421 )

Dec ( N = 311 )