Ownership Profile

Top Institutional Holders
Rank	Institution	Shares Held	% Owned of Shares Outstanding	Quarterly Share Change	SEC 13F Filing Date
1	Capital Research Global Investors	19,163,600	6.5	1,757,638	03/31/13
2	Nippon Life Insurance Company	18,137,000	6.2	0	03/31/13
3	The Vanguard Group, Inc.	17,871,680	6.1	911,147	03/31/13
4	Wellington Management Company, LLP	14,226,649	4.9	254,658	03/31/13
5	State Street Global Advisors (US)	12,197,415	4.2	-60,360	03/31/13
6	Newton Investment Management Ltd.	11,648,032	4.0	-335,289	03/31/13
7	BlackRock Institutional Trust Company, N.A.	10,809,439	3.7	260,643	03/31/13
8	Harris Associates L.P.	9,638,300	3.3	2,371,800	03/31/13
9	Goldman Sachs Asset Management (US)	6,549,500	2.2	-506,955	03/31/13
10	Northern Trust Global Investments	5,631,960	1.9	-256,322	03/31/13
11	Altrinsic Global Advisors, LLC	3,893,175	1.3	60,679	03/31/13
12	TIAA-CREF	2,923,029	1.0	-1,251,655	03/31/13
13	Mairs and Power, Inc.	2,729,093	0.9	471,126	03/31/13
14	Columbia Management Investment Advisers, LLC	2,626,045	0.9	-233,884	03/31/13
15	Northern Trust Investments, N.A.	2,529,955	0.9	95,744	03/31/13
16	The Boston Company Asset Management, LLC	2,053,595	0.7	-1,292,819	03/31/13
17	Dimensional Fund Advisors, LP	1,907,465	0.7	10,150	03/31/13
18	Scout Investments, Inc.	1,907,158	0.7	1,882,843	03/31/13
19	Geode Capital Management, L.L.C.	1,811,729	0.6	41,139	03/31/13
20	Mellon Capital Management Corporation	1,724,825	0.6	90,858	03/31/13

Institutional Ownership: % of Shares Outstanding by Region

North America: 51.6%
Europe: 8.9%
Asia: 7.6%
Africa: 0.0%
Australia: 0.0%
South America: 0.0%

Ownership data based on most recent publicly available data according to Thomson Reuters. The Principal Financial Group^® does not maintain or provide information directly to this service.