Rank	Countries/Territories	Count	Percent
1	United States	534	46.4%
2	China	321	27.9%
3	Germany	134	11.6%
4	Canada	38	3.3%
5	Ukraine	17	1.5%
6	France	14	1.2%
7	Netherlands	11	1%
8	Japan	10	0.9%
9	Singapore	9	0.8%
10	Australia	7	0.6%
11	United Kingdom	5	0.4%
12	Sweden	4	0.3%
13	Taiwan	4	0.3%
14	Pakistan	4	0.3%
15	Cyprus	4	0.3%
16	Hong Kong	4	0.3%
17	Korea, Republic of	3	0.3%
18	Brazil	3	0.3%
19	Spain	3	0.3%
20	Turkey	2	0.2%
21	Viet Nam	2	0.2%
22	Portugal	2	0.2%
23	Argentina	2	0.2%
24	Austria	2	0.2%
25	Latvia	2	0.2%
26	Mexico	2	0.2%
27	Ireland	2	0.2%
28	Myanmar	2	0.2%
29	India	1	0.1%
30	Mongolia	1	0.1%
31	Bangladesh	1	0.1%
32	Palestine, State of	1	0.1%
33	Norway	1	0.1%