Jan ( N = 290 )

Feb ( N = 301 )

Mar ( N = 371 )

Apr ( N = 398 )

May ( N = 425 )

Jun ( N = 427 )

Jul ( N = 480 )

Aug ( N = 432 )

Sep ( N = 374 )

Oct ( N = 334 )

Nov ( N = 277 )

Dec ( N = 251 )