Rank	Countries/Territories	Count	Percent
1	United States	287	35.4%
2	China	261	32.2%
3	Germany	90	11.1%
4	Syrian Arab Republic	24	3%
5	Japan	23	2.8%
6	Canada	22	2.7%
7	France	15	1.8%
8	Netherlands	13	1.6%
9	Singapore	9	1.1%
10	Morocco	7	0.9%
11	Cyprus	7	0.9%
12	Mongolia	6	0.7%
13	Iran, Islamic Republic of	5	0.6%
14	Taiwan	5	0.6%
15	Ireland	4	0.5%
16	Italy	3	0.4%
17	Latvia	3	0.4%
18	Argentina	3	0.4%
19	Brazil	3	0.4%
20	United Arab Emirates	3	0.4%
21	Spain	2	0.2%
22	Bulgaria	2	0.2%
23	Australia	2	0.2%
24	Austria	2	0.2%
25	Korea, Republic of	2	0.2%
26	India	2	0.2%
27	Sweden	1	0.1%
28	Ukraine	1	0.1%
29	New Zealand	1	0.1%
30	Norway	1	0.1%
31	Russia	1	0.1%
32	United Kingdom	1	0.1%