| 1 | A | B | C | D | E |
| --- | --- | --- | --- | --- | --- |
| 2 | this table displays the results of summary statistics of exporters. the information is grouped by period (appearing as row headers), exporters' share in number of firms, employment and shipments, and labour productivity, exporters relative to non-exporters, calculated using percent and ratio units of measure (appearing as column headers) |  |  |  |  |
| 3 | period | exporters' share in |  |  | labour productivity, exporters relative to non-exporters |
| 4 |  | number of firms | employment | shipments |  |
| 5 |  | percent |  |  | ratio |
| 6 | 1974 to 1979 | 24 | 60 | 68 | 1.02 |
| 7 | 1979 to 1984 | 24 | 61 | 70 | 1.00 |
| 8 | 1984 to 1990 | 29 | 64 | 74 | 1.44 |
| 9 | 1990 to 1996 | 34 | 68 | 81 | 1.63 |
| 10 | 1996 to 2000 | 35 | 72 | 84 | 1.31 |
| 11 | 2000 to 2005 | 39 | 77 | 82 | 1.10 |
| 12 | 2005 to 2010 | 39 | 75 | 79 | 0.86 |
| 13 | 1974 to 2010 | 35 | 72 | 79 | 1.13 |

Question: over the period from 1974 to 2010, what percent of canadian manufacturing firms were exporters?
Answer: 35

Question: how many percent of exporters was more productive than non-exporters?
Answer: 0.13