Moving yearly Total Data / month

all values are listed as: GB

   time  |       up     down
---------+------------------
2025-06  |  236.781  162.387
2025-07  |  208.035  167.588
2025-08  |  191.670  200.931
2025-09  |  156.583  227.622
2025-10  |  109.294  440.603
2025-11  |   75.239  811.263
2025-12  |   40.389  831.849
2026-01  |    8.550  836.667
2026-02  |    0.000  859.324
2026-03  |    0.000  867.513
2026-04  |    0.000  876.589
2026-05  |    0.000  873.486
2026-06  |    0.000  880.531