A gardener wants to develop a forecast for next year's quarterly sales of cactus trees. He has collected quarterly sales for the past two years and the data clearly exhibit seasonality. The following table below shows the sales of cactus trees over the past 2 years. Please help the gardener conduct seasonal factor analysis based on the past sales data. Cactus trees sold Season Year 1 Year 2 Fall 100 110 Winter 82 95 Spring 180 173 Summer 110 110 Please calculate seasonal indices based on the provided past sales data: Sfall = (Please provide your answer for other seasonal indices in the next three questions. Please maintain two decimal places if your answer contains more than two decimals.) Continued from the previous question: SWinter = (Please maintain two decimal places if your answer contains more than two decimals.) Continued from the previous question: Sspring = (Please maintain two decimal places if your answer contains more than two decimals.) Continued from the previous question: Ssummer = (Please maintain two decimal places if your answer contains more than two decimals.)