Given the following information Year Sales (y+ 152 2019 219 176 194 Period 2019-period 1 2019-period 2 2019-period 3 2020-period 1 2020-period 2 2020-period 3 2021-period 1 2021-period 2 2021-period 3 2020 195 248 139 2021 289 183 Find the seasonal index (SI) for period 2 (Round your answer to 2 decimal places)