YEAR, not periodic
MONTH, period 12
DATE. FORMAT: "MMM YYYY"
Fit for AIR from ARIMA, MOD_11 LN CON
Error for AIR from ARIMA, MOD_11 LN CON
95% LCL for AIR from ARIMA, MOD_11 LN CON
95% UCL for AIR from ARIMA, MOD_11 LN CON