F David Taplin

Insider Trading: Sales

Symbol	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
NC	$99.50	77	$7,661.50	18,323	2012-03-12	Filing
NC	$101.77	300	$30,531.00	18,400	2012-03-09	Filing
NC	$101.84	200	$20,367.00	18,700	2012-03-09	Filing
NC	$101.80	300	$30,540.00	18,900	2012-03-09	Filing
NC	$101.76	1	$101.76	19,200	2012-03-09	Filing
NC	$101.80	500	$50,897.50	19,201	2012-03-09	Filing
NC	$101.72	300	$30,516.00	19,701	2012-03-09	Filing
NC	$101.78	100	$10,177.50	20,001	2012-03-09	Filing
NC	$101.99	100	$10,199.00	20,101	2012-03-09	Filing
NC	$102.06	100	$10,205.50	20,201	2012-03-09	Filing
NC	$102.08	400	$40,832.00	20,301	2012-03-09	Filing
NC	$100.95	200	$20,190.00	20,701	2012-03-09	Filing
NC	$101.01	11	$1,111.11	20,901	2012-03-09	Filing
NC	$100.31	100	$10,031.00	20,912	2012-03-09	Filing
NC	$100.28	100	$10,028.00	21,012	2012-03-09	Filing
NC	$99.71	100	$9,971.00	21,112	2012-03-09	Filing
NC	$99.66	100	$9,966.00	21,212	2012-03-09	Filing
NC	$99.53	73	$7,265.69	21,312	2012-03-09	Filing
NC	$99.77	15	$1,496.55	21,385	2012-03-09	Filing
NC	$99.93	200	$19,986.00	21,400	2012-03-09	Filing