Start with 2021: Spinal 40%, Ortho 35%, ENT 25% (100%)
2022: 40.5, 35, 25.5 โ 101% โ adjust
Alternatively, Spinal 40, Ortho 35, ENT 25. Let's say Spinal grows by 1% each year, Ortho by 0.5%, ENT by 0.5%. Each year, total would be 40+35+25=100, then next year 41+35.5+25.5=102 โ not possible. Maybe Spinal increases by 0.5% each year, Ortho stays same, ENT increases by 1% each year. Then 2021: 40,35,25 โ 100. 2022: 40.5,35,25.5 โ 101 โ not good. Hmm. Perhaps the example in the user's JSON is simplified. Let me check the example again. In their example, the values are [10,12,15,18,20] for Product A over the periods. The sum for each year would be 10+8+5=23, then 12+9+6=27, etc. So the segments don't have to sum to 100%, but represent absolute values. Wait, maybe the segments are different categories contributing to the total market. For example, Product A, B, C. So the total market is the sum of all three. So the segments are not percentages but actual values. So in that case, the values are absolute. So for my case, the segments (Application) can be in terms of market share percentages or absolute values. But the user wants segment-stacked chart, which usually shows the composition of the total. So if using percentages, each segment is a percentage of total. If using absolute values, they sum to the total market size.