Each face is one federal fiscal year of U.S. customs duties, twelve stripes from October to September: 2024 on top, 2025 on the right, 2026 on the left. A stripe’s thickness along the cube edge is that month’s duties after refunds, on one dollar scale for all 36. Vermilion stripes are months when refunds were larger than the duties collected, drawn as thick as the shortfall. White gaps carry no data. Tap a stripe or use the arrow keys.

U.S. Treasury, Monthly Treasury Statement, Table 4, customs duties (public domain). Code: Luke Steuber, MIT.

DataSourceLuke SteuberData Poems