Jan ( N = 252 )

Feb ( N = 278 )

Mar ( N = 186 )

Apr ( N = 221 )

May ( N = 269 )

Jun ( N = 280 )

Jul ( N = 284 )

Aug ( N = 285 )

Sep ( N = 272 )

Oct ( N = 281 )

Nov ( N = 267 )

Dec ( N = 260 )