Jan ( N = 399 )

Feb ( N = 307 )

Mar ( N = 395 )

Apr ( N = 409 )

May ( N = 319 )

Jun ( N = 410 )

Jul ( N = 359 )

Aug ( N = 358 )

Sep ( N = 342 )

Oct ( N = 416 )

Nov ( N = 392 )

Dec ( N = 412 )