| Frequency | Percent |
Delays to open borders | 13 | 09.1 |
High Custom duty | 106 | 74.1 |
Many check points | 02 | 01.4 |
Porters charges high transportation fees | 20 | 14.0 |
Risky at sea | 02 | 01.4 |
Total | 143 | 100.0 |
Missing | 21 | 12.8 |