Jan ( N = 316 )

Feb ( N = 277 )

Mar ( N = 270 )

Apr ( N = 290 )

May ( N = 316 )

Jun ( N = 301 )

Jul ( N = 275 )

Aug ( N = 303 )

Sep ( N = 216 )

Oct ( N = 245 )

Nov ( N = 494 )

Dec ( N = 486 )