1Normalized data before clear: 2 3 0 100 4 1 140 5 2 180 6 3 220 7 4 260 8Aggregation data after clear: 9 10 0 0 11 1 0 12 2 0 13 3 0 14 4 0 15Final (normalized) aggregation data: 16 17 0 300 18 1 540 19 2 580 20 3 620 21 4 660 22 23