Rows per table
tbl       n
Bill      2953
Payment   3319
StatusLog 8802

Month: bills and amount charged
month     bills     charged
2025-10   171       8362000
2025-11   204       9561000
2025-12   276       13406000
2026-01   235       11551000
2026-02   268       13398000
2026-03   317       15927000
2026-04   290       14391000
2026-05   248       11933000
2026-06   217       10702000
2026-07   255       12568000
2026-08   216       10501000
2026-09   256       11913000

Outlet: bills and amount charged
outlet    bills     charged
O01       1312      66282000
O02       996       45450000
O03       645       32481000

Service: top five by amount charged
service   bills     charged
S0001     1368      67632000
S0002     405       18360000
S0008     170       8085000
S0004     157       7800000
S0003     256       7506000

Hour of arrival
hour      bills
07        387
08        336
09        336
10        118
11        125
12        109
13        108
14        102
15        209
16        211
17        229
18        219
19        229
20        235

