Table: derek daly
Question: How did the number of points scored by Derek Daly vary according to the different teams? Answer with only 'Increase', 'Decrease' or 'Remain stable' that is most accurate and nothing else.
Step 1 (Operation, Grouping): team
Step 2 (Reasoning, Aggregating): AVG, points
Step 3 (Operation, Sorting): year
Step 4 (Reasoning, Other Commonsense Reasoning): vary
Answer: Increase