Rank	Countries/Territories	Count	Percent
1	United States	421	39.1%
2	China	351	32.6%
3	Germany	82	7.6%
4	France	33	3.1%
5	Singapore	25	2.3%
6	Netherlands	19	1.8%
7	Ukraine	17	1.6%
8	Japan	16	1.5%
9	Cyprus	15	1.4%
10	Canada	13	1.2%
11	Australia	13	1.2%
12	Korea, Republic of	9	0.8%
13	India	8	0.7%
14	Italy	6	0.6%
15	South Africa	6	0.6%
16	Switzerland	5	0.5%
17	Iran, Islamic Republic of	5	0.5%
18	Hong Kong	4	0.4%
19	Brazil	4	0.4%
20	Bulgaria	4	0.4%
21	Belgium	3	0.3%
22	Lithuania	3	0.3%
23	United Kingdom	3	0.3%
24	Norway	2	0.2%
25	Israel	2	0.2%
26	Bosnia and Herzegovina	2	0.2%
27	Finland	2	0.2%
28	Argentina	1	0.1%
29	Romania	1	0.1%
30	Russia	1	0.1%