| Categorical data is presented | Categorical data and aggregation of data is presented | Categorical data is presented for the first question and synthesis of answers for the explanation part |
Questions | 1, 3, 6, 11, 14, 15, 16, 17, 23 | 2, 4, 5, 7, 8, 12, 24 | 9, 10, 13, 18, 19, 20, 21, 22, 25 |