Jan ( N = 278 )

Feb ( N = 243 )

Mar ( N = 266 )

Apr ( N = 270 )

May ( N = 279 )

Jun ( N = 261 )

Jul ( N = 201 )

Aug ( N = 269 )

Sep ( N = 251 )

Oct ( N = 278 )

Nov ( N = 265 )

Dec ( N = 277 )