Video games at Saukville, Wisconsin, to borrow free
M
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E
T
M
E
M
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E10+
M
E
T
E
E
M
M
E
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E
T
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T
E
Copies per library (table)
Each change is stamped with the snapshot that saw it; it happened since the snapshot before (hourly for copies already moving, every 4 hours for everything else).