Jan ( N = 305 )

Feb ( N = 284 )

Mar ( N = 311 )

Apr ( N = 313 )

May ( N = 261 )

Jun ( N = 315 )

Jul ( N = 340 )

Aug ( N = 306 )

Sep ( N = 194 )

Oct ( N = 389 )

Nov ( N = 411 )

Dec ( N = 456 )