Rank	Countries/Territories	Count	Percent
1	United States	308	44.2%
2	China	201	28.8%
3	Germany	61	8.8%
4	Canada	28	4%
5	Australia	10	1.4%
6	Ukraine	10	1.4%
7	Japan	8	1.1%
8	France	8	1.1%
9	Ireland	8	1.1%
10	Netherlands	7	1%
11	Singapore	6	0.9%
12	Brazil	6	0.9%
13	India	4	0.6%
14	United Kingdom	4	0.6%
15	Iran, Islamic Republic of	3	0.4%
16	Hong Kong	3	0.4%
17	Greece	2	0.3%
18	Georgia	2	0.3%
19	Cyprus	2	0.3%
20	Morocco	2	0.3%
21	Turkey	2	0.3%
22	Viet Nam	2	0.3%
23	Spain	2	0.3%
24	Kenya	2	0.3%
25	Malaysia	1	0.1%
26	Mongolia	1	0.1%
27	Sweden	1	0.1%
28	Argentina	1	0.1%
29	Hungary	1	0.1%
30	Italy	1	0.1%