| 1 | A | B | C | D | E |
| --- | --- | --- | --- | --- | --- |
| 2 | distribution by the industrial sector, the unionization rate and the rate of participation in a pension plan over a five-year period |  |  |  |  |
| 3 |  | bac |  | bac |  |
| 4 |  | 2 years before | 2 years after | 2012 | 2016 |
| 5 |  | percent |  |  |  |
| 6 | industrial sector |  |  |  |  |
| 7 | goods-producing industries | 4.7 | 6.4 | 10.5 | 11.1 |
| 8 | low value-added service industry | 22.1 | 9.9 | 11.0 | 8.3 |
| 9 | high value-added service industry | 30.2 | 36.6 | 39.4 | 38.3 |
| 10 | educational services | 9.9 | 11.6 | 11.8 | 12.9 |
| 11 | health care and social assistance | 12.8 | 14.0 | 9.8 | 9.2 |
| 12 | public administration | 15.1 | 18.0 | 12.0 | 14.0 |
| 13 | unknown | 5.2 | 3.5 | 5.5 | 6.1 |
| 14 | unionization rate |  |  |  |  |
| 15 | had union contributions | 37.8 | 42.4 | 35.9 | 37.7 |
| 16 | had no union contributions | 62.2 | 57.6 | 64.1 | 62.3 |
| 17 | rate of participation in a pension plan |  |  |  |  |
| 18 | participated in a pension plan | 30.2 | 46.5 | 37.0 | 46.3 |
| 19 | did not participate in a pension plan | 69.8 | 53.5 | 63.0 | 53.7 |

Question: in total, what was the proportion of bachelor graduates from 2010 who obtained an additional short-duration credential between 2013 and 2015 and who worked in low value-added service industries fell two years before obtaining the short-duration credential?
Answer: 22.1

Question: in total, what was the proportion of bachelor graduates from 2010 who obtained an additional short-duration credential between 2013 and 2015 and who worked in low value-added service industries fell two years after obtaining the short-duration credential?
Answer: 9.9

Question: what was the unionization rate increased betweeen two years before and two years after obtaining the short-duration credential?
Answer: 4.6