Additional Information Reconciliation of Non-GAAP Measure with the Nearest Comparable GAAP Measure Reconciliation from consolidated revenue to revenue excluding acquisitions and foreign currency translations (organic revenue): (1) Sum of percentages may not match total because of rounding. 144 2008  2009  2010 $000  Q1  Q2  Q3  Q4  Q1  Q2  Q3  Q4  Q1  Q2  Q3  Q4 Consolidated revenue  $125,444 $132,237 $125,505 $119,271 $116,732 $119,533 $120,088 $122,643 $128,290 $136,091 $139,817 $151,153  Less: acquisitions  (11,098)  (4,876)  (4,732)  (6,419)  (5,928)  (6,732)  (9,342)  (7,588)  (9,704)  (12,718)  (11,964)  (13,464) (Favorable)/unfavorable  (2,281)  (3,085)  (271)   3,787 5,697  5,031  1,969  (3,710)  (3,731)  (671)   183 (143) impact of foreign currency translations Revenue excluding  $112,065 $124,276 $120,502 $116,639 $116,501 $117,832 $112,715 111,345  $114,855 $122,702 $128,036 $137,546 acquisitions and foreign currency translations Consolidated revenue  31%  21%  12%  1%  -7%  -10%  -4%  3%  10%  14%  16%  23% growth Less: acquisitions  -12%  -4%  -4%  -5%  -5%  -5%  -7%  -6%  -8%  -11%  -10%  -11% Less: impact of  -2%  -3%  0%  3%  5%  4%  2%  -3%  -3%  -1%  0%  0% foreign currency Revenue growth  17%  13%  8%  -1%  -7%  -11%  -10%  -7%  -2%  3%  7%  12% excluding acquisitions and foreign currency translations (1)