Moving yearly Total Data / month

all values are listed as: GB

   time  |  bcast  bogey
---------+--------------
2022-03  |  1.453  0.000
2022-04  |  1.526  0.000
2022-05  |  1.602  0.000
2022-06  |  1.675  0.000
2022-07  |  1.750  0.000
2022-08  |  1.826  0.000
2022-09  |  1.899  0.000
2022-10  |  1.976  0.000
2022-11  |  2.052  0.000
2022-12  |  2.130  0.000
2023-01  |  2.103  0.000
2023-02  |  2.106  0.000
2023-03  |  2.087  0.003