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:
| Order number | Build date | Serial numbers | Country | Railroad | Numbers | Quantity |
| --- | --- | --- | --- | --- | --- | --- |
| 711197-711208 | February 1970 - March 1970 | 34671-34682 | Brazil | E. F. Vitória a Minas | 801-812 | 12.0 |
| 711441-711448 | March 1970 - April 1970 | 36303-36310 | Brazil | E. F. Vitória a Minas | 813-820 | 8.0 |
| 711871-711880 | March 1971 | 37278-37287 | Brazil | E. F. Vitória a Minas | 821-830 | 10.0 |
| 712613-712621 | March 1973 - April 1973 | 712613-712621 | Brazil | E. F. Vitória a Minas | 831-839 | 9.0 |
| 713096-713119 | January 1974 - April 1974 | 713096-713119 | Brazil | E. F. Vitória a Minas | 840-863 | 24.0 |
| 713726-713735 | October 1975 - December 1975 | 713726-713735 | Brazil | E. F. Vitória a Minas | 864-873 | 10.0 |
Question:
How many railroads have the numbers 864-873?
Answer:
1.0