Rank	Countries/Territories	Count	Percent
1	United States	347	37.1%
2	China	292	31.2%
3	Germany	116	12.4%
4	Hungary	26	2.8%
5	Korea, Republic of	20	2.1%
6	Canada	19	2%
7	United Kingdom	16	1.7%
8	France	11	1.2%
9	Japan	10	1.1%
10	Netherlands	10	1.1%
11	Singapore	10	1.1%
12	Australia	9	1%
13	Cyprus	8	0.9%
14	Bulgaria	6	0.6%
15	Greece	5	0.5%
16	Bangladesh	4	0.4%
17	Brazil	4	0.4%
18	Hong Kong	3	0.3%
19	Italy	3	0.3%
20	Taiwan	3	0.3%
21	Mongolia	3	0.3%
22	Ukraine	2	0.2%
23	India	2	0.2%
24	Ireland	2	0.2%
25	Argentina	2	0.2%
26	Latvia	1	0.1%
27	Palestine, State of	1	0.1%
28	Romania	1	0.1%