Rank	Countries/Territories	Count	Percent
1	United States	245	41.9%
2	China	151	25.8%
3	Germany	47	8%
4	Poland	20	3.4%
5	United Kingdom	14	2.4%
6	France	14	2.4%
7	Japan	12	2.1%
8	Singapore	11	1.9%
9	Canada	10	1.7%
10	India	8	1.4%
11	Cyprus	6	1%
12	Nigeria	6	1%
13	Korea, Republic of	5	0.9%
14	Netherlands	4	0.7%
15	Kazakhstan	3	0.5%
16	Ireland	3	0.5%
17	Hungary	3	0.5%
18	Iran, Islamic Republic of	2	0.3%
19	Latvia	2	0.3%
20	Malaysia	2	0.3%
21	Belarus	2	0.3%
22	Nepal	2	0.3%
23	Norway	2	0.3%
24	Spain	2	0.3%
25	Switzerland	1	0.2%
26	Taiwan	1	0.2%
27	Ukraine	1	0.2%
28	Russia	1	0.2%
29	Afghanistan	1	0.2%
30	Australia	1	0.2%
31	Ethiopia	1	0.2%
32	Hong Kong	1	0.2%
33	Mongolia	1	0.2%