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:
| Year | District-wide | High schools | Middle schools | Elementary schools | Other programs & adjustments |
| --- | --- | --- | --- | --- | --- |
| 2006-2007 | 31221.0 | 8808.0 | 6405.0 | 14369.0 | 1639.0 |
| 2005-2006 | 31599.0 | 8570.0 | 6610.0 | 14249.0 | 2170.0 |
| 2004-2005 | 31851.0 | 8620.0 | 6876.0 | 14384.0 | 1971.0 |
| 2003-2004 | 32150.0 | 8430.0 | 7115.0 | 14497.0 | 2108.0 |
| 2002-2003 | 32464.0 | 8696.0 | 7103.0 | 14733.0 | 1932.0 |
| 2001-2002 | 35399.0 | 10114.0 | 5504.0 | 19541.0 | 240.0 |
Question:
Name the most high schools for 31851
Answer:
8620.0