I found only one category range that could even yield a mode.....70-80 year olds mode range $60k-$75k. (Yields {"";"";"";60;"";20;"";"";60;"";"";"";"";"";"";"";"";"";"";"";"";"";"";""} for the lower limits.) The rest all have unique numbers.
I pulled the lower limits out of the ranges and made a lookup table.
File attached.
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