Moving yearly Total Data / month

all values are listed as: k pkts

   time  |    bcast    bogey
---------+------------------
2025-06  |  102.702    0.011
2025-07  |  102.681    0.011
2025-08  |  102.672    0.011
2025-09  |  102.569    0.009
2025-10  |  102.563    0.009
2025-11  |  102.564    0.009
2025-12  |  102.562    0.009
2026-01  |  102.562    0.009
2026-02  |  102.563    0.009
2026-03  |  102.563    0.009
2026-04  |  102.563    0.009
2026-05  |  102.544    0.000
2026-06  |   96.687    0.000