| Value | Category | Cases | |
|---|---|---|---|
| 1 | US$ 1 | 743 |
21.6%
|
| 2 | US$ 1.50 | 1763 |
51.3%
|
| 3 | US$ 2 | 118 |
3.4%
|
| 4 | US$ 2.50 | 90 |
2.6%
|
| 5 | US$ 3 | 18 |
0.5%
|
| 6 | US$ 3.50 | 21 |
0.6%
|
| 7 | US$ 4 | 21 |
0.6%
|
| 8 | I don't know | 665 |
19.3%
|
| Sysmiss | 35 |