Rank	Countries/Territories	Count	Percent
1	United States	247	39.8%
2	China	181	29.2%
3	Germany	43	6.9%
4	France	24	3.9%
5	Singapore	21	3.4%
6	Japan	15	2.4%
7	Russia	12	1.9%
8	Netherlands	9	1.5%
9	Italy	6	1%
10	Canada	6	1%
11	Cyprus	6	1%
12	Argentina	5	0.8%
13	Romania	5	0.8%
14	Ukraine	4	0.6%
15	Sweden	4	0.6%
16	India	4	0.6%
17	Mongolia	3	0.5%
18	Australia	3	0.5%
19	Hong Kong	3	0.5%
20	Egypt	2	0.3%
21	Morocco	2	0.3%
22	Pakistan	2	0.3%
23	Ireland	2	0.3%
24	Switzerland	2	0.3%
25	Taiwan	2	0.3%
26	United Kingdom	2	0.3%
27	Thailand	1	0.2%
28	Venezuela, Bolivarian Republic of	1	0.2%
29	Israel	1	0.2%
30	Bulgaria	1	0.2%
31	Denmark	1	0.2%