Jan ( N = 406 )

Feb ( N = 348 )

Mar ( N = 340 )

Apr ( N = 406 )

May ( N = 434 )

Jun ( N = 420 )

Jul ( N = 434 )

Aug ( N = 421 )

Sep ( N = 420 )

Oct ( N = 432 )

Nov ( N = 420 )

Dec ( N = 418 )