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:
| County | Per capita income | Median household income | Median family income | Population | Number of households |
| --- | --- | --- | --- | --- | --- |
| Nantucket | $51,456 | $84,979 | $89,236 | 10135.0 | 3745.0 |
| Norfolk | $43,685 | $83,733 | $106,309 | 666426.0 | 255944.0 |
| Middlesex | $41,453 | $79,691 | $100,267 | 1491762.0 | 577349.0 |
| Barnstable | $36,000 | $60,525 | $76,708 | 216639.0 | 96775.0 |
| Massachusetts | $35,051 | $65,981 | $83,371 | 6512227.0 | 2522409.0 |
| Essex | $34,858 | $65,785 | $83,047 | 739505.0 | 284940.0 |
| Plymouth | $34,285 | $74,698 | $88,110 | 492934.0 | 178996.0 |
| Dukes | $33,228 | $69,760 | $82,659 | 16353.0 | 5568.0 |
| Suffolk | $32,034 | $51,638 | $60,342 | 713089.0 | 286437.0 |
| Worcester | $31,470 | $65,772 | $81,342 | 794981.0 | 299089.0 |
| Berkshire | $29,387 | $48,705 | $64,393 | 131221.0 | 55793.0 |
| Hampshire | $29,113 | $60,331 | $82,999 | 157630.0 | 58921.0 |
| Bristol | $28,682 | $55,813 | $71,416 | 547305.0 | 210536.0 |
| Franklin | $28,313 | $52,246 | $65,713 | 71495.0 | 30362.0 |
| United States | $27,915 | $52,762 | $64,293 | 306603772.0 | 114761359.0 |
| Hampden | $25,363 | $48,866 | $61,800 | 462752.0 | 177954.0 |
Question:
What county has $51,456 income per capita?
Answer:
Nantucket