line 6: bad service 'dry-clean' - skipped
line 9: expected 4 fields, found 3 - skipped
line 13: expected 4 fields, found 5 - skipped
line 15: bad weight '3.x' - skipped
9 good orders in ../data/week.csv

service    orders     weight       amount
fold            4      17.5 kg       122500
wash-iron       3       6.0 kg        60000
iron            2       7.5 kg        45000
all             9                  227500

date       orders       amount
2026-09-21      3        68500
2026-09-22      2        56000
2026-09-23      2        57000
2026-09-24      1        21000
2026-09-25      1        25000
