Jan ( N = 278 )

Feb ( N = 288 )

Mar ( N = 371 )

Apr ( N = 394 )

May ( N = 457 )

Jun ( N = 437 )

Jul ( N = 470 )

Aug ( N = 429 )

Sep ( N = 377 )

Oct ( N = 337 )

Nov ( N = 216 )

Dec ( N = 275 )