Jan ( N = 399 )

Feb ( N = 364 )

Mar ( N = 401 )

Apr ( N = 387 )

May ( N = 378 )

Jun ( N = 390 )

Jul ( N = 391 )

Aug ( N = 280 )

Sep ( N = 390 )

Oct ( N = 403 )

Nov ( N = 344 )

Dec ( N = 399 )