Jan ( N = 430 )

Feb ( N = 399 )

Mar ( N = 388 )

Apr ( N = 365 )

May ( N = 396 )

Jun ( N = 418 )

Jul ( N = 430 )

Aug ( N = 362 )

Sep ( N = 405 )

Oct ( N = 419 )

Nov ( N = 395 )

Dec ( N = 432 )