17. Earnings Per Share The standards of accounting for earnings per share require companies to provide a reconciliation of the numerator and denominator of the basic and diluted earnings per share computations. Basic and diluted earnings per share were calculated as follows: Year Ended September 30, 2012 Numerator: Net income Denominator: Weighted-average common shares (Denominator for basic calculation) Weighted-average effect of dilutive securities: Share-based compensation Diluted weighted-average common shares (Denominator for diluted calculation) Earnings per share: Basic Diluted $40,826 22,506,408 773,890 23,280,298 2011 $51,662 22,895,568 2010 $49,458 23,083,807 539,036 23,434,604 188,772 23,272,579 $ $ 1.81 1.75 $ $ 2.26 2.20 $ $ 2.14 2.13 For the twelve months ended September 30, 2012, 2011, and 2010, approximately 1.3 million, 1.3 million and 2.6 million shares, respectively, attributable to outstanding stock options were excluded from the calculation of diluted earnings per share because the exercise price of the options was greater than the average market price of our common stock and, therefore, their inclusion would have been anti-dilutive. than ten percent of our total revenue in fiscal 2012, 2011 and 2010: Year Ended September 30, 2012 Revenue: Taiwan South Korea Japan Singapore $124,732 68,573 56,488 * 2011 $132,089 56,321 57,889 47,441 2010 $129,533 42,669 60,207 44,316 18. Financial Information by Industry Segment, Geographic Area and Product Line We operate predominantly in one industry segment— the development, manufacture, and sale of CMP consumables. Revenues are attributed to the United States and foreign regions based upon the customer location and not the geographic location from which our products were shipped. Financial information by geographic area was as follows: Year Ended September 30, 2012 Revenue: United States Asia Europe Total Property, plant and equipment, net: United States Asia Europe Total $ 56,770 342,958 27,929 $427,657 2011 $ 61,540 356,074 27,828 $ 445,442 2010 $ 55,666 327,202 25,333 $ 408,201 *Denotes less than ten percent of total The following table shows net property, plant and equipment in foreign countries that accounted for more than ten percent of our total net property, plant and equipment in fiscal 2012, 2011 and 2010: Year Ended September 30, 2012 Property, plant and equipment, net: Japan Taiwan South Korea 2011 2010 $ 43,411 18,397 12,580 $ 50,236 17,577 * $ 42,225 17,542 * *Denotes less than ten percent of total The following table shows revenue generated by product line in fiscal 2012, 2011 and 2010: Year Ended September 30, 2012 Revenue: Tungsten slurries Dielectric slurries Copper slurries Polishing pads Engineered Surface Finishes Data storage slurries Total $161,756 119,320 67,157 33,725 24,878 20,821 $427,657 2011 $ 164,098 121,543 76,285 31,045 24,685 27,786 $ 445,442 2010 $ 147,788 117,484 75,898 29,909 16,316 20,806 $ 408,201 $ 49,325 75,690 5 $125,020 $ 50,503 80,280 8 $ 130,791 $ 55,576 60,235 — $ 115,811 The following table shows revenue from sales to customers in foreign countries that accounted for more 58