Jan ( N = 263 )

Feb ( N = 443 )

Mar ( N = 520 )

Apr ( N = 510 )

May ( N = 524 )

Jun ( N = 496 )

Jul ( N = 471 )

Aug ( N = 417 )

Sep ( N = 419 )

Oct ( N = 179 )

Nov ( N = 280 )

Dec ( N = 295 )