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:
| Season | Timeslot | Season Premiere | Season Finale | Episodes | TV Season | Ranking | Viewers (in millions) |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1st | Friday 10:00pm | January 23, 2005 | May 13, 2005 | 13.0 | 2004–2005 | #36 | 10.77 |
| 2nd | Friday 10:00pm | September 23, 2005 | May 19, 2006 | 24.0 | 2005–2006 | #32 | 11.62 |
| 3rd | Friday 10:00pm | September 22, 2006 | May 18, 2007 | 24.0 | 2006–2007 | #38 | 10.5 |
| 4th | Friday 10:00pm | September 28, 2007 | May 16, 2008 | 18.0 | 2007–2008 | #55 | 9.14 |
| 5th | Friday 10:00pm | October 3, 2008 | May 15, 2009 | 23.0 | 2008–2009 | #37 | 10.29 |
Question:
How many rankings did the 5th season have?
Answer:
1.0