Jan ( N = 210 )

Feb ( N = 278 )

Mar ( N = 352 )

Apr ( N = 370 )

May ( N = 391 )

Jun ( N = 409 )

Jul ( N = 405 )

Aug ( N = 421 )

Sep ( N = 371 )

Oct ( N = 338 )

Nov ( N = 230 )

Dec ( N = 238 )