| Age groups (years) | Observed N | Expected N | Residual |
| X1: 50 - 59 | 329 | 300.5 | 28.5 |
| X2: 60 - 69 | 298 | 300.5 | −2.5 |
| X3: ≥70 | 225 | 300.5 | −75.5 |
| Y: 25 - 35 | 350 | 300.5 | 49.5 |
| Total | 1202 |
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