Given the following information 2019 179 209 164 190 2015 portod 2019 period 2019-period 3 2020-period 1 2020-period 2 2020-period 3 2021-period 1 2021-period 2 2021-period 3 2020 220 222 161 2021 122 229 Find the seasonal index (SI) for period 2 (Round your answer to 2 decimal places)