Bobo was obsessed with foxes. Over the course of several years, Bobo recorded fox populations on Aquidneck Island, a hobby that he began on January 1, 2003. He determined that the fox population varied periodically over time. For example, at 2.9 years, the fox population was 180, which was a minimum value. At 5.3 year, the population had rebounded to a maximum of 820 foxes. Bobo retired and now spends his time watching Youtube videos of Jupiter Fox instead of collecting data in the field. Assuming Bobo's datapoints are indicative of a regular sinusiodal curve, determine the predicted fox population for January 1, 2021. Round to the nearest whole number of foxes.

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