Rank	Countries/Territories	Count	Percent
1	United States	583	47.3%
2	China	329	26.7%
3	Germany	152	12.3%
4	Canada	38	3.1%
5	Ukraine	17	1.4%
6	France	16	1.3%
7	Japan	11	0.9%
8	Netherlands	11	0.9%
9	Singapore	9	0.7%
10	Australia	8	0.6%
11	Hong Kong	5	0.4%
12	United Kingdom	5	0.4%
13	Sweden	4	0.3%
14	Taiwan	4	0.3%
15	Pakistan	4	0.3%
16	Cyprus	4	0.3%
17	Brazil	3	0.2%
18	Korea, Republic of	3	0.2%
19	Spain	3	0.2%
20	Myanmar	2	0.2%
21	Portugal	2	0.2%
22	Turkey	2	0.2%
23	Viet Nam	2	0.2%
24	Latvia	2	0.2%
25	Mexico	2	0.2%
26	Ireland	2	0.2%
27	Austria	2	0.2%
28	Argentina	2	0.2%
29	Bangladesh	1	0.1%
30	Bulgaria	1	0.1%
31	India	1	0.1%
32	Mongolia	1	0.1%
33	Palestine, State of	1	0.1%
34	Norway	1	0.1%