| Value | Category | Cases | |
|---|---|---|---|
| 1 | Purchased, upfront | 1923 |
89.9%
|
| 2 | Purchased, in installment | 38 |
1.8%
|
| 3 | Received for free | 35 |
1.6%
|
| 4 | Self-made | 133 |
6.2%
|
| 96 | Don’t know | 10 |
0.5%
|