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It's impossible to give a clear answer to this. There are a few factors to consider: Who is "lost"? You may be able to find data on the number of people who are called in as missing, and where so...
Answer
It's impossible to give a clear answer to this. There are a few factors to consider: Who is "lost"? You may be able to find data on the number of people who are called in as missing, and where so...