Rank	Countries/Territories	Count	Percent
1	United States	521	40.2%
2	China	254	19.6%
3	Germany	154	11.9%
4	India	68	5.3%
5	Australia	41	3.2%
6	United Kingdom	40	3.1%
7	Netherlands	30	2.3%
8	Japan	18	1.4%
9	Ireland	15	1.2%
10	Singapore	14	1.1%
11	Russia	12	0.9%
12	Korea, Republic of	11	0.8%
13	Nigeria	11	0.8%
14	Jordan	10	0.8%
15	France	9	0.7%
16	Cyprus	8	0.6%
17	Canada	8	0.6%
18	Brazil	7	0.5%
19	Mexico	5	0.4%
20	Philippines	4	0.3%
21	Argentina	4	0.3%
22	Indonesia	4	0.3%
23	Sri Lanka	4	0.3%
24	Taiwan	4	0.3%
25	Sweden	3	0.2%
26	Austria	3	0.2%
27	Portugal	3	0.2%
28	Malawi	3	0.2%
29	Malaysia	2	0.2%
30	Pakistan	2	0.2%
31	Peru	2	0.2%
32	Mongolia	2	0.2%
33	Morocco	2	0.2%
34	Bangladesh	2	0.2%
35	Georgia	2	0.2%
36	Iran, Islamic Republic of	2	0.2%
37	Ghana	2	0.2%
38	Hong Kong	2	0.2%
39	Spain	2	0.2%
40	Iraq	1	0.1%
41	Ethiopia	1	0.1%
42	Poland	1	0.1%
43	Slovakia	1	0.1%
44	South Africa	1	0.1%