Problem 1 (Trend Analysis) Sales for the Laguna Corporation for a five-year period and an industry sales index for this period are listed below. 2017 2018 2019 2020 2021 Sales of Laguna 4.200 4.515 4.355 4.425 4.265 Industry Sales index 190 212 210 170 158 Required: 1. Convert both series into indexes employing (a) 2017 and (b) 2018 as the base year. 2. Comment on the company's performance during the five-year period as compared to the industry statistics