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:
| Championship | Current champion(s) | Reign | Date won | Days held | Location |
| --- | --- | --- | --- | --- | --- |
| WWE Championship | Randy Orton | 8 | October 27, 2013 | 97.0 | Miami , Florida |
| World Heavyweight Championship | John Cena | 3 | October 27, 2013 | 97.0 | Miami , Florida |
| WWE Intercontinental Championship | Curtis Axel | 1 | June 16, 2013 | 230.0 | Rosemont , Illinois |
| WWE United States Championship | Dean Ambrose | 1 | May 19, 2013 | 258.0 | St. Louis , Missouri |
| WWE Tag Team Championship | Cody Rhodes and Goldust | 1 (2,1) | October 14, 2013 | 110.0 | St. Louis , Missouri |
| WWE Divas Championship | AJ Lee | 1 | June 16, 2013 | 230.0 | Rosemont , Illinois |
Question:
Name the days for current champions of dean ambrose
Answer:
258.0