Jan ( N = 342 )

Feb ( N = 296 )

Mar ( N = 342 )

Apr ( N = 331 )

May ( N = 341 )

Jun ( N = 322 )

Jul ( N = 325 )

Aug ( N = 319 )

Sep ( N = 330 )

Oct ( N = 336 )

Nov ( N = 330 )

Dec ( N = 337 )