Jan ( N = 196 )

Feb ( N = 140 )

Mar ( N = 160 )

Apr ( N = 256 )

May ( N = 194 )

Jun ( N = 637 )

Jul ( N = 555 )

Aug ( N = 528 )

Sep ( N = 539 )

Oct ( N = 540 )

Nov ( N = 266 )

Dec ( N = 336 )