Given the Following Time Series,compute the Seasonal (Quarterly)indexes,using the Four-Quarter
Given the following time series,compute the seasonal (quarterly)indexes,using the four-quarter centered moving averages. 
Definitions:
Unemployed
Refers to people who are without a job and have actively looked for work within the recent past.
Full Load Current
The maximum current a device or component can handle or draw under its specified full operating conditions.
Motor Starter Circuit
An electrical circuit used to start and stop a motor safely, often incorporating protective devices and controls.
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