Moving yearly Total Data / month

all values are listed as: M pkts

   time  |     total
---------+----------
2025-06  |   475.880
2025-07  |   494.785
2025-08  |   532.359
2025-09  |   555.252
2025-10  |   854.272
2025-11  |  1343.397
2025-12  |  1418.865
2026-01  |  1495.564
2026-02  |  1577.163
2026-03  |  1638.574
2026-04  |  1648.284
2026-05  |  1640.199
2026-06  |  1619.161