Says the EPA limit is 1200Bq/kg, and the shrimp are at 68Bq/kg, so its nowhere near the limit. The way I see it I can eat 17.6kg or 38.8lbs of that shrimp before it hits that limit, and I know those limits are conservative for safety reasons, so I can exceed that without too much concern.
Based on some other limits from the NRC and some very rough math I would be willing to eat up to 98000 pounds of that per year. I'll play it safe and take about 2000 pounds of free shrimp please.