Jan ( N = 471 )

Feb ( N = 449 )

Mar ( N = 490 )

Apr ( N = 471 )

May ( N = 474 )

Jun ( N = 448 )

Jul ( N = 202 )

Aug ( N = 329 )

Sep ( N = 288 )

Oct ( N = 159 )

Nov ( N = 222 )

Dec ( N = 177 )