| Value | Category |
|---|---|
| 1 | Friends/neighbors |
| 2 | Walk-ins |
| 3 | Referrals from existing customers |
| 4 | Referrals from other individuals |
| 5 | Door-to-door selling/Sales representative |
| 6 | Trade shows/exhibitions |
| 7 | Referral from NGO |
| 8 | Referral from other business |
| 9 | Referral from business association |
| 10 | Contracts (contracts longer than 3 months) |
| 11 | ES5Q4_specify |
| Sysmiss |