Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Rank | Commodity | Value (Int $1000) | Production (MT) | Quantity world rank | Value world rank |
| --- | --- | --- | --- | --- | --- |
| 1.0 | Wheat | 939150.0 | 6400000.0 | 19 | 17 |
| 2.0 | Indigenous chicken meat | 635889.0 | 446424.0 | NA | NA |
| 3.0 | Olives | 616541.0 | 770000.0 | 6 | 6 |
| 4.0 | Tomatoes | 480433.0 | 1300000.0 | 17 | 17 |
| 5.0 | Indigenous cattle meat | 433257.0 | 160384.0 | NA | NA |
| 6.0 | Cow milk, whole, fresh | 409566.0 | 1750000.0 | NA | NA |
| 7.0 | Barley | 389709.0 | 3800000.0 | 12 | 7 |
| 8.0 | Indigenous sheep meat | 325935.0 | 119706.0 | NA | NA |
| 9.0 | Almonds, with shell | 307240.0 | 104115.0 | 5 | 5 |
| 10.0 | Oranges | 231910.0 | 1200000.0 | 14 | 14 |
| 11.0 | Potatoes | 230032.0 | 1500000.0 | NA | NA |
| 12.0 | Hen eggs, in shell | 221668.0 | 267267.0 | NA | NA |
| 13.0 | String beans | 173716.0 | 182180.0 | 3 | 3 |
| 14.0 | Grapes | 171485.0 | 300000.0 | NA | NA |
| 15.0 | Apples | 169166.0 | 400000.0 | NA | NA |
| 16.0 | Strawberries | 168627.0 | 124239.0 | 11 | 11 |
| 17.0 | Onions, dry | 136521.0 | 650000.0 | 23 | 23 |
| 18.0 | Other melons (inc.cantaloupes) | 134386.0 | 730000.0 | 8 | 8 |
| 19.0 | Tangerines, mandarins, clem. | 128945.0 | 522000.0 | 12 | 12 |
Question:
where value world rank is 12, what is the quantity world rank?
Answer:
12.0