| Variable | Year 1 | Year 2 |
|---|---|---|
| Average Monthly Household Income | £4,000 | £4,600 |
| Monthly Quantity Demanded of 'Saver-Value' Toilet Paper (packs) | 50,000 | 35,000 |
Using the data in Table 1, explain whether 'Saver-Value' toilet paper is a normal good or an inferior good.