Normalized data before clear:

        0              100
        1              140
        2              180
        3              220
        4              260
Aggregation data after clear:

        0                0
        1                0
        2                0
        3                0
        4                0
Final (normalized) aggregation data:

        0              300
        1              540
        2              580
        3              620
        4              660

