Exhibit 2 NSI Income Statement (in thousands) 2001 2002 2003 2004 2005 2006* 2007** 2008** Contracts, other revenues and earned fees 123,567 167,426 218,369 315,423 535,348 624,773 742,153 928,027 Direct contract costs and indirect expenses of field offices 110,805 150,031 195,135 283,122 455,523 531,614 631,492 789,650 Gross profit 12,762 17,395 23,234 32,301 79,825 93,159 110,661 138,377 Gross profit margin 0 0 0 0 0 0 0 0 Corporate general and administrative expenses 6,264 7,243 8,180 8,594 10,995 11,545 12,122 12,728 Equity (income) received from joint ventures -52 -11 -332 -1,142 -1,997 -2,179 -2,400 -2,640 Operating income 6,550 10,163 15,386 24,849 70,827 83,793 100,939 128,289 Total interest and other expenses (income) 749 108 233 461 -3,219 -625 -742 -928 Pretax income (EBIT) 5,801 10,055 15,153 24,388 74,046 84,418 101,681 129,217 Provisions for income taxes 2,321 3,393 4,230 9,238 28,754 32,801 38,963 48,721 Minority interests in net income paid from joint ventures 940 1,238 152 1,722 3,676 5,730 6,436 7,670 Non-operating, extraordinary items 0 -3,141 -1,125 -1,059 0 0 0 0 Net income 2,540 8,565 11,896 14,487 41,616 45,887 56,282 72,826 Net income margin 0.021 0.051 0.054 0.046 0.078 0.073 0.076 0.078 Calculation of ebitda Net income 2,540 8,565 11,896 14,487 41,616