UK Data Service variable record for:
| Variable | DVnic |
| Label | NI: DV for last regular NI contribution |
| Disclaimer | Please note that these frequencies are not weighted. |
| Location | Expenditure and Food Survey, 2006 |
| Interviewer Instructions | DV for last regular NI contribution (NICONTAM). |
| Universe | National;Households in the United Kingdom surveyed during 2006. |
| Sampling | Multi-stage stratified random sample |
| Study Type | Repeated cross-sectional study. From January 2006, the EFS moved from a financial to calendar year basis in anticipation of the CPS. |