A very special type of polysquare puzzles is the set of 'square-puzzles', where all given shapes are squares with integral sidelength.
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... 45 to 64, and 19.9% who are 65 years of age or older. The median age is 43 years. For every 100 females there are 102.7 males. For every 100 females age 18 and over, ...