For the three and nine months ended September 30, 2012, our basic and diluted per share calculations utilized weighted average common shares of 266 million and 269 million, respectively, and 282 million and 260 million for the three and nine months ended September 30, 2011. Additionally, our 266 million shares outstanding at July 27, 2012 declined modestly to 263 million shares outstanding at October 29, 2012.
Capital Expenditures and Free Cash Flow
For the three months ended September 30, 2012, we reported capital expenditures of $457 million or 18% of revenue, as compared to $449 million or 19% of revenue for the corresponding 2011 period. For the 2012 and 2011 nine-month periods, our capital expenditures totaled $1.45 billion and $1.42 billion, respectively. As a percentage of revenue, our 2012 year-to-date capital expenditures decreased to 19% of revenue from 20% of revenue for the prior year period. The declines in our capital expenditures as a percentage of revenue for each of the three- and nine-month 2012 periods were attributable to our non-cash vendor financing and capital lease arrangements, which were $37 million and $112 million higher, as compared to the respective 2011 periods. Additionally, our total property and equipment additions, which include our capital expenditures on an accrual basis and our non-cash vendor financing and capital lease additions, represented 21% and 22% of revenue during the three and nine months ended September 30, 2012, as compared to 21% for each of the 2011 comparable periods.
In terms of our Free Cash Flow (“FCF”), we reported FCF of ($63 million) and $2 million for the three months ended September 30, 2012 and 2011, respectively. On a year-to-date basis, we generated FCF of $328 million for the 2012 period, as compared to $348 million for the 2011 period. The declines in year-over-year FCF in each period were attributable in part to the negative FCF resulting from our Chilean wireless project, as well as adverse FX movements.