can seasonal counts be seasonal can seasonal data be seasonally stationary can seasonal data be seasonally stationary can seasonal data be seasonally stationary arima can seasonal data can seasonal data be seasonally stationary is seasonal data seasonal can seasonal data be seasonally stationary can seasonal data be seasonally stationary is seasonally stationary data seasonal is ARIMA seasonal can arima model show seasonal data? is seasonal data normally seasonal? can seasonal count data be seasonally stationary is arma data seasonal can seasonal counts be seasonally stationary are seasonal count data seasonally stationary if they include seasonal differencing can arima model show seasonally stationary data can seasonal data be seasonally stationary can seasonal data be seasonally stationary