Jan ( N = 432 )

Feb ( N = 405 )

Mar ( N = 434 )

Apr ( N = 418 )

May ( N = 426 )

Jun ( N = 413 )

Jul ( N = 434 )

Aug ( N = 430 )

Sep ( N = 415 )

Oct ( N = 424 )

Nov ( N = 400 )

Dec ( N = 434 )