Jan ( N = 180 )

Feb ( N = 273 )

Mar ( N = 376 )

Apr ( N = 403 )

May ( N = 451 )

Jun ( N = 384 )

Jul ( N = 461 )

Aug ( N = 344 )

Sep ( N = 351 )

Oct ( N = 332 )

Nov ( N = 275 )

Dec ( N = 270 )