Jan ( N = 269 )

Feb ( N = 279 )

Mar ( N = 371 )

Apr ( N = 400 )

May ( N = 464 )

Jun ( N = 406 )

Jul ( N = 461 )

Aug ( N = 438 )

Sep ( N = 381 )

Oct ( N = 317 )

Nov ( N = 282 )

Dec ( N = 199 )