Jan ( N = 217 )

Feb ( N = 276 )

Mar ( N = 351 )

Apr ( N = 344 )

May ( N = 342 )

Jun ( N = 334 )

Jul ( N = 304 )

Aug ( N = 333 )

Sep ( N = 376 )

Oct ( N = 300 )

Nov ( N = 220 )

Dec ( N = 245 )