Jan ( N = 415 )

Feb ( N = 383 )

Mar ( N = 397 )

Apr ( N = 436 )

May ( N = 620 )

Jun ( N = 921 )

Jul ( N = 913 )

Aug ( N = 865 )

Sep ( N = 731 )

Oct ( N = 532 )

Nov ( N = 260 )

Dec ( N = 275 )