The dataset shows how households, including per definition given in the datasheet also small business enterprises (with less than 60.000 € profit per year according to the legal definition of the german term), use fresh water. It therefore assembles average data from German households over the course of the year 2021 and breaks it down to Liter per person per day.
Each row represents one usage-category for fresh water such as the usages "Bathing, showering", "toilett", "cleaning, garden and car cleaning" etc.. The rows already bundle diverse practices into these categories. In total, 7 categories are given.
The second collumn provides the percentage of the total water spendings that is attributable to the category, the third collumn presents the number of liters used per person per day for the mentionned activity.
From the footnote I draw, that the numbers in the third collumn are not part of the inquiry of BDEW, the data source, but product of a simple calculation of the percentage in collumn 2 with the liter/person and day-figure that the Statistisches Bundesamt gives for the water consuption (127 liter/person and day)
