{
  "fields": [{"id":"_id","type":"int"},{"id":"Miesiąc","type":"timestamp"},{"id":"Przystąpienia","type":"numeric"},{"id":"Wystąpienia","type":"numeric"},{"id":"Liczba klientów na koniec miesiąca","type":"numeric"},{"id":"Liczba klientów na start miesiąca","type":"numeric"}],
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    [16,"2025-04-01T00:00:00",12273,-73,181347,169147],
    [17,"2025-03-01T00:00:00",12444,-50,169147,156753],
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    [27,"2024-05-01T00:00:00",12602,-151,50394,37943],
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    [29,"2024-03-01T00:00:00",13972,-90,24963,11081],
    [30,"2024-02-01T00:00:00",8261,-53,11081,2873]
]}