Jan ( N = 399 )

Feb ( N = 361 )

Mar ( N = 397 )

Apr ( N = 387 )

May ( N = 394 )

Jun ( N = 390 )

Jul ( N = 392 )

Aug ( N = 398 )

Sep ( N = 390 )

Oct ( N = 403 )

Nov ( N = 390 )

Dec ( N = 389 )