Rank	Countries/Territories	Count	Percent
1	United States	518	42.5%
2	China	382	31.3%
3	Germany	98	8%
4	Romania	43	3.5%
5	France	32	2.6%
6	Japan	20	1.6%
7	India	19	1.6%
8	Canada	13	1.1%
9	Singapore	12	1%
10	Ukraine	10	0.8%
11	United Kingdom	10	0.8%
12	Netherlands	10	0.8%
13	Korea, Republic of	10	0.8%
14	Ecuador	7	0.6%
15	Australia	6	0.5%
16	Hong Kong	5	0.4%
17	Argentina	3	0.2%
18	Bangladesh	3	0.2%
19	Cyprus	3	0.2%
20	Norway	3	0.2%
21	Saudi Arabia	2	0.2%
22	Lithuania	2	0.2%
23	Egypt	2	0.2%
24	Iran, Islamic Republic of	2	0.2%
25	Ireland	1	0.1%
26	Latvia	1	0.1%
27	Austria	1	0.1%
28	Turkey	1	0.1%