Jan ( N = 401 )

Feb ( N = 386 )

Mar ( N = 411 )

Apr ( N = 417 )

May ( N = 432 )

Jun ( N = 413 )

Jul ( N = 434 )

Aug ( N = 433 )

Sep ( N = 419 )

Oct ( N = 429 )

Nov ( N = 409 )

Dec ( N = 416 )