Jan ( N = 287 )

Feb ( N = 308 )

Mar ( N = 334 )

Apr ( N = 329 )

May ( N = 335 )

Jun ( N = 326 )

Jul ( N = 338 )

Aug ( N = 340 )

Sep ( N = 320 )

Oct ( N = 518 )

Nov ( N = 504 )

Dec ( N = 513 )