| 1 | A | B | C | D | E |
| --- | --- | --- | --- | --- | --- |
| 2 | difference in internet use between middle-aged canadians and seniors, 2007 to 2016 |  |  |  |  |
| 3 |  | 2007 | 2010 | 2013 | 2016 |
| 4 |  | percent |  |  |  |
| 5 | middle-aged canadians | 81.2 | 88.0 | 89.6 | 96.2 |
| 6 | seniors | 32.2 | 46.0 | 52.4 | 68.2 |
| 7 |  | percentage points |  |  |  |
| 8 | gap | 49.0 | 41.9 | 37.2 | 28.0 |

Question: how many percentage points was the absolute gap in internet use between non-seniors and seniors in 2007?
Answer: 49

Question: how many percentage points was the absolute gap in internet use between non-seniors and seniors in 2016?
Answer: 28

Question: how many percentage points did the gap between seniors and middle-aged canadians narrow from 2007 to 2016?
Answer: 21