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:
| Polling Firm | Month | Link | Favor | Oppose |
| --- | --- | --- | --- | --- |
| Rutgers-Eagleton | March 2014 |  | 64 | 28 |
| Quinnipiac | July 2013 |  | 60 | 31 |
| Rutgers-Eagleton | June 2013 |  | 59 | 30 |
| Quinnipiac | March 2013 |  | 64 | 30 |
| Public Policy Polling | November 2012 |  | 53 | 36 |
| Quinnipiac | February 2012 |  | 57 | 37 |
| Rutgers-Eagleton | February 2012 |  | 54 | 35 |
| Quinnipiac | January 2012 |  | 52 | 42 |
| Rutgers-Eagleton | October 2011 |  | 52 | 39 |
| Rutgers-Eagleton | August 2011 |  | 52 | 32 |
| Public Policy Polling | July 2011 |  | 47 | 42 |
| Quinnipiac | November 2009 |  | 46 | 49 |
| Rutgers–Eagleton | November 2009 |  | 50 | 42 |
| Quinnipiac | April 2009 |  | 49 | 43 |
| Zogby International | August 2008 |  | 50 | 42 |
| Zogby International | August 2007 |  | 48.1 | 44.6 |
| Rasmussen Reports | July 2006 |  | 42 | 54 |
| Rutgers-Eagleton | June 2006 | PDF | 49 | 44 |
| Zogby International | February 2006 |  | 56 | 39 |
| Zogby International | April 2005 | HTML | 54.5 | 40.1 |
| Rutgers-Eagleton | September 2003 | PDF | 43 | 50 |
| Zogby International | July 2003 |  | 55 | 41 |
Question:
which polling firm was the only poll done in 2008?
Answer:
Zogby International