Rank	Countries/Territories	Count	Percent
1	United States	525	43.3%
2	China	320	26.4%
3	Germany	82	6.8%
4	Netherlands	51	4.2%
5	France	41	3.4%
6	Russia	25	2.1%
7	Singapore	20	1.6%
8	Canada	18	1.5%
9	India	15	1.2%
10	United Kingdom	15	1.2%
11	Ukraine	13	1.1%
12	Australia	13	1.1%
13	Indonesia	10	0.8%
14	Japan	6	0.5%
15	Korea, Republic of	6	0.5%
16	Argentina	5	0.4%
17	Cyprus	5	0.4%
18	Ghana	4	0.3%
19	Sweden	4	0.3%
20	Taiwan	4	0.3%
21	Mongolia	4	0.3%
22	Romania	3	0.2%
23	Hong Kong	3	0.2%
24	Mexico	3	0.2%
25	Zambia	3	0.2%
26	Malaysia	2	0.2%
27	Kenya	2	0.2%
28	Iran, Islamic Republic of	2	0.2%
29	Ireland	2	0.2%
30	Israel	1	0.1%
31	Latvia	1	0.1%
32	Greece	1	0.1%
33	Estonia	1	0.1%
34	Monaco	1	0.1%
35	New Zealand	1	0.1%
36	Norway	1	0.1%