Strategy video games from 2017 on at West Bend, Wisconsin, to borrow free
T
T
M
T
T
M
E
T
T
M
M
E
E
E
—
T
—
M
T
M
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).