Rank	Countries/Territories	Count	Percent
1	United States	630	41.5%
2	China	522	34.4%
3	Germany	113	7.4%
4	Canada	30	2%
5	Iran, Islamic Republic of	28	1.8%
6		27	1.8%
7	France	23	1.5%
8	Japan	15	1%
9	Czech Republic	13	0.9%
10	United Kingdom	12	0.8%
11	Netherlands	11	0.7%
12	Singapore	10	0.7%
13	Spain	9	0.6%
14	Italy	7	0.5%
15	Australia	7	0.5%
16	Cyprus	7	0.5%
17	Russia	6	0.4%
18	Saudi Arabia	5	0.3%
19	Hong Kong	5	0.3%
20	India	5	0.3%
21	Greece	3	0.2%
22	Korea, Republic of	3	0.2%
23	Ecuador	3	0.2%
24	Turkey	3	0.2%
25	Ukraine	3	0.2%
26	Sweden	3	0.2%
27	Switzerland	2	0.1%
28	Taiwan	2	0.1%
29	Norway	2	0.1%
30	Brazil	2	0.1%
31	Latvia	2	0.1%
32	Mexico	2	0.1%
33	Mongolia	1	0.1%
34	Pakistan	1	0.1%