| 1 | A | B | C | D | E | F | G | H | I |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 2 | percentage of highest certificate, diploma or degree of female lone parents and female parents in couples, aged 25 to 54 with children aged 15 and under in 1991, 2001 and 2011, canada |  |  |  |  |  |  |  |  |
| 3 | highest certificate, diploma or degree | female lone parents |  |  |  | female parent in couples |  |  |  |
| 4 |  | 1991 | 2001 | 2011 | difference | 1991 | 2001 | 2011 | difference |
| 5 |  | percent |  |  |  |  |  |  |  |
| 6 | total | 100 | 100 | 100 | .. | 100 | 100 | 100 | .. |
| 7 | no certificate, diploma or degree | 34 | 20 | 13 | -21 | 24 | 13 | 8 | -16 |
| 8 | high school diploma or equivalency | 30 | 28 | 25 | -5 | 32 | 28 | 21 | -11 |
| 9 | postsecondary certificate below the bachelor's level | 26 | 39 | 42 | 16 | 29 | 36 | 38 | 9 |
| 10 | university degree at the bachelor's level or above | 9 | 13 | 20 | 11 | 15 | 23 | 33 | 18 |

Question: what was the percentage of female lone parents that had no certificate, diploma or degree in 1991?
Answer: 34

Question: what was the percentage of female lone parents that had no certificate, diploma or degree in 2011?
Answer: 13

Question: how much did the proportion of female lone parents that had no certificate, diploma or degree drop from 1991 to 2011?
Answer: 21

Question: what was the percentage of female parents in couples had not completed high school or any postsecondary qualification in 1991?
Answer: 24

Question: what was the percentage of female parents in couples had not completed high school or any postsecondary qualification in 2011?
Answer: 8

Question: what was the percentage of female lone parents that had a university degree in 1991?
Answer: 9

Question: what was the percentage of female lone parents that had a university degree in 2011?
Answer: 20

Question: how much did the proportion of female lone parents that had a university degree increase from 1991 to 2011?
Answer: difference

Question: what was the percentage of female parents in couples had a university degree in 1991?
Answer: 15

Question: what was the percentage of female parents in couples had a university degree in 2011?
Answer: 33

Question: how much did the proportion of female parents in couples that had a university degree increase from 1991 to 2011?
Answer: 18