Nam Beer is an Austin-based brewery. Its best seller beer, Nam Dark, features a nice balance of flavor and aroma, and competes in the premium larger market dominated by Budweiser. The sales of Nam Dark since 2016 are reported in the table below. Salex (in thousand units) of Nam Dark berween 2016 to 2020 2016 2017 2018 2019 2020 100 120 145 170 160 Apply linear trend extrapolation to forecast the unit sales in 2021. Show your work (1) Assume that the average growth rate in the last four years is the the growth rate from 2020 to 2021, (2) Assume that the growth rate of the most recent year is the the growth rate from 2020 to 2021