Jan ( N = 262 )

Feb ( N = 274 )

Mar ( N = 362 )

Apr ( N = 396 )

May ( N = 463 )

Jun ( N = 423 )

Jul ( N = 459 )

Aug ( N = 420 )

Sep ( N = 366 )

Oct ( N = 332 )

Nov ( N = 270 )

Dec ( N = 269 )