statistics table row structure.html
<tr>
<td>1</td> <!-- id -->
<td>hash1</td> <!-- a string identifier; this is the string I thought you need, but later on I realized you need that string as a column identifier -->
<td>High Qualification</td> <!-- qualification -->
<td>Citizens</td> <!-- category-->
<td>10</td> <!-- employees_number -->
<td>5</td> <!-- cash_wages -->
<td>6</td> <!-- in_kind_wages -->
<td>11</td> <!-- total -->
</tr>