Based on the data below, what is the best estimate for the forecasting model's Level and Trend variables?

Quarter period Demand Dt Deseasonalized Demand Dt

I $13001$

II $22316$

III $332174767$

IV $496935046$

I $546865288$

II $628585427$

III $746135492$

IV $894085697$

I $954945650$

II $1036895699$

III $1134086128$

IV $12110056625$

I $1373227188$

II $1458438111$

III $1557548768$

IV $16160488680$

I $1775318653$

II $1849288918$

III $196458$

IV $2017464$