( CNN ) -- Since the infidelity scandal that took down the CIA chief David Petraeus broke last Friday , a scattered timeline of bizarre events have captivated , if not confused , the public . There is his mistress and biographer , Paula Broadwell . Then there is Jill Kelley , the Florida woman whose claim about anonymous e-mails questioning her character triggered an FBI probe that uncovered the Broadwell-Petraeus affair . Finally , there is Gen. John Allen , the man who commands U.S. forces in Afghanistan and whose nomination to become the NATO Supreme Allied Commander of Europe is now in question . Confused ? Maybe laying it out -- by the numbers -- will help : . 4 - Number of stars , as a general , with which Petraeus retired . 38 - Four-star officers in the U.S. military , as of August 2012 . 2 - Number of generals involved in the scandal . 5 - In which top percentage of his West Point class Petraeus graduated . 38 - Years Petraeus and his wife Holly have been married . 22 - Current and former directors of the Central Intelligence Agency . 197 - Amazon.com sales rank of Broadwell 's book `` All In : The Education of General David Petraeus '' on Wednesday . 76,792 - Previous rank on Amazon.com before the scandal made the news . 20,000-30,000 - Number of documents -- many of them e-mails between Allen and Kelley -- that investigators are reviewing . 7,969 - Number of U.S. government requests for data on Gmail.com user accounts , according to a Google transparency report covering January to June of 2012 . 6 - Number of minutes in which Petraeus and Broadwell were reportedly able to finish each mile on their runs together . 0 - Number of active `` Friends of MacDill '' Air Force Base visitor passes currently held by Kelley . Timeline of the Petraeus affair .
30,000 - Number of stars awarded Air Force Base as U.S. Army general . 2 - Number of 22 -star generals involved in the scandal . Around 2 - Documents -- many of them emails -- investigators are looking at related to Kelley and Kelley . 22 - Current and former directors of the U.S. Central Intelligence Agency .