Jan ( N = 341 )

Feb ( N = 308 )

Mar ( N = 341 )

Apr ( N = 330 )

May ( N = 333 )

Jun ( N = 330 )

Jul ( N = 341 )

Aug ( N = 341 )

Sep ( N = 330 )

Oct ( N = 524 )

Nov ( N = 510 )

Dec ( N = 527 )