| 1 | A | B | C | D | E |
| --- | --- | --- | --- | --- | --- |
| 2 | lisa sub-group linkage observations |  |  |  |  |
| 3 | category | 1982 | 1985 | 1996 | 2011 |
| 4 | all | 8,068 | 9,334 | 13,514 | 19,403 |
| 5 | female | 4,153 | 4,878 | 7,220 | 10,247 |
| 6 | male | 3,915 | 4,456 | 6,294 | 9,156 |
| 7 | 21-30 | 3,991 | 4,168 | 2,911 | 3,040 |
| 8 | 31-40 | 2,460 | 3,102 | 4,630 | 3,043 |
| 9 | 41-50 | 1,073 | 1,246 | 3,581 | 4,441 |
| 10 | 51 or over | 544 | 818 | 2,392 | 8,879 |
| 11 | immigrants | 889 | 1,038 | 1,829 | 3,558 |
| 12 | non-immigrants | 7,179 | 8,296 | 11,685 | 15,845 |
| 13 | alberta resident 2011 | 735 | 860 | 1,313 | 2,056 |
| 14 | bc resident 2011 | 860 | 948 | 1,396 | 2,129 |
| 15 | manitoba resident 2011 | 576 | 679 | 963 | 1,373 |
| 16 | maritimes resident 2011 | 2,043 | 2,379 | 3,278 | 4,138 |
| 17 | ontario resident 2011 | 1,716 | 1,963 | 2,930 | 4,493 |
| 18 | quebec resident 2011 | 1,593 | 1,869 | 2,734 | 3,920 |
| 19 | saskatchewan resident 2011 | 545 | 636 | 900 | 1,294 |

Question: which age group has the highest linkage rate of all age groups in 2011?
Answer: 51 or over