how many zogby international polls took place in the month of august?
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col : polling firm | month | link | favor | oppose row 1 : rutgers-eagleton | march 2014 |  | 64 | 28 row 2 : quinnipiac | july 2013 |  | 60 | 31 row 3 : rutgers-eagleton | june 2013 |  | 59 | 30 row 4 : quinnipiac | march 2013 |  | 64 | 30 row 5 : public policy polling | november 2012 |  | 53 | 36 row 6 : quinnipiac | february 2012 |  | 57 | 37 row 7 : rutgers-eagleton | february 2012 |  | 54 | 35 row 8 : quinnipiac | january 2012 |  | 52 | 42 row 9 : rutgers-eagleton | october 2011 |  | 52 | 39 row 10 : rutgers-eagleton | august 2011 |  | 52 | 32 row 11 : public policy polling | july 2011 |  | 47 | 42 row 12 : quinnipiac | november 2009 |  | 46 | 49 row 13 : rutgers–eagleton | november 2009 |  | 50 | 42 row 14 : quinnipiac | april 2009 |  | 49 | 43 row 15 : zogby international | august 2008 |  | 50 | 42 row 16 : zogby international | august 2007 |  | 48.1 | 44.6 row 17 : rasmussen reports | july 2006 |  | 42 | 54 row 18 : rutgers-eagleton | june 2006 | pdf | 49 | 44 row 19 : zogby international | february 2006 |  | 56 | 39 row 20 : zogby international | april 2005 | html | 54.5 | 40.1 row 21 : rutgers-eagleton | september 2003 | pdf | 43 | 50 row 22 : zogby international | july 2003 |  | 55 | 41
how many zogby international polls took place in the month of august?
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
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