Rank	Countries/Territories	Count	Percent
1	United States	372	51.1%
2	China	142	19.5%
3	Germany	38	5.2%
4	Russia	23	3.2%
5	France	21	2.9%
6	Singapore	20	2.7%
7	India	15	2.1%
8	Ukraine	12	1.6%
9	United Kingdom	10	1.4%
10	Netherlands	8	1.1%
11	Indonesia	7	1%
12	Australia	7	1%
13	Canada	5	0.7%
14	Japan	5	0.7%
15	Korea, Republic of	5	0.7%
16	Cyprus	4	0.5%
17	Ghana	4	0.5%
18	Mongolia	4	0.5%
19	Romania	3	0.4%
20	Zambia	3	0.4%
21	Hong Kong	3	0.4%
22	Argentina	3	0.4%
23	Malaysia	2	0.3%
24	Kenya	2	0.3%
25	Iran, Islamic Republic of	2	0.3%
26	Ireland	2	0.3%
27	Israel	1	0.1%
28	Monaco	1	0.1%
29	Estonia	1	0.1%
30	New Zealand	1	0.1%
31	Norway	1	0.1%
32	Taiwan	1	0.1%