Rank	Countries/Territories	Count	Percent
1	United States	686	43.3%
2	China	604	38.2%
3	Germany	110	6.9%
4	France	36	2.3%
5	Russia	27	1.7%
6	Singapore	15	0.9%
7	Japan	14	0.9%
8	Canada	13	0.8%
9	United Kingdom	12	0.8%
10	Australia	9	0.6%
11	Hong Kong	7	0.4%
12	Korea, Republic of	6	0.4%
13	Netherlands	6	0.4%
14	Norway	5	0.3%
15	Ukraine	4	0.3%
16	Afghanistan	4	0.3%
17	Cyprus	3	0.2%
18	Sweden	3	0.2%
19	Taiwan	2	0.1%
20	Turkey	2	0.1%
21	Poland	2	0.1%
22	Malaysia	2	0.1%
23	Czech Republic	2	0.1%
24	Argentina	2	0.1%
25	Iran, Islamic Republic of	2	0.1%
26	South Africa	2	0.1%
27	Spain	1	0.1%
28	Lithuania	1	0.1%
29	India	1	0.1%