Jan ( N = 493 )

Feb ( N = 462 )

Mar ( N = 466 )

Apr ( N = 287 )

May ( N = 440 )

Jun ( N = 480 )

Jul ( N = 496 )

Aug ( N = 496 )

Sep ( N = 479 )

Oct ( N = 224 )

Nov ( N = 37 )

Dec ( N = 329 )