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:
|  | Name | Took office | Left office | Party | Notes/Events |
| --- | --- | --- | --- | --- | --- |
| 11 | William McCreery | March 4, 1803 | March 3, 1809 | Democratic Republican |  |
| 12 | Alexander McKim | March 4, 1809 | March 3, 1815 | Democratic Republican |  |
| 13 | William Pinkney | March 4, 1815 | April 18, 1816 | Democratic Republican | Resigned to accept position as Minister Plenipotentiary to Russia |
| 14 | Peter Little | September 2, 1816 | March 3, 1823 | Democratic Republican |  |
| 14 | Peter Little | March 4, 1823 | March 3, 1825 | Jacksonian DR |  |
| 14 | Peter Little | March 4, 1825 | March 3, 1829 | Adams |  |
| 15 | Benjamin C. Howard | March 4, 1829 | March 3, 1833 | Jacksonian |  |
Question:
how many people stayed at least 3 years in office?
Answer:
4