13. QUARTERLY FINANCIAL DATA (UNAUDITED) Quarterly 2011 and 2010 data is summarized in the table below. Quarterly amounts may not equal annual amounts due to  rounding. First Second Third Fourth Quarter Quarter Quarter Quarter 2011 Total revenue  $1,019,874  $1,040,861 $1,074,360  $ 1,171,337 Operating income  450,890  467,572 483,598  533,082 Consolidated income from continuing operations  219,666  250,522 333,781  441,931 Net income available to common stockholders  179,412  205,121 274,000  362,929 Net income per share — Basic  $  0.61  $  0.70 $  0.93  $  1.24 Net income per share — Diluted  $  0.61  $  0.70 $  0.93  $  1.24 Weighted average shares outstanding  293,080,205  293,367,771 293,735,663  293,821,920 Diluted weighted average shares outstanding  293,290,496  293,402,353 293,758,135  293,832,555 2010 Total revenue  $ 925,071  $ 933,566 $ 979,275  $ 1,119,718 Operating income  426,916  415,467 397,794  504,062 Consolidated income from continuing operations  20,754  185,152 280,532  267,076 Net income available to common stockholders  9,373  152,504 230,624  217,923 Net income per share — Basic  $  0.03  $  0.52 $  0.79  $  0.74 Net income per share — Diluted  $  0.03  $  0.52 $  0.79  $  0.74 Weighted average shares outstanding  286,124,631  292,323,804 292,830,418  292,931,101 Diluted weighted average shares outstanding  286,438,373  292,613,735 293,089,128  293,160,767 14. SUBSEQUENT EVENTS At December 31, 2011, we had a 49.0% ownership interest in GCI which owned 45 properties located in Italy. On January 9,  2012, we sold our entire ownership interest in GCI to our venture partner, Auchan S.A. The aggregate cash we received related to  the sale of our interest in GCI was $378.0 million. We expect to record a gain on the sale in the first quarter of 2012. 2011 Annual Report 63