Rank	Countries/Territories	Count	Percent
1	China	540	42.9%
2	United States	444	35.2%
3	Germany	81	6.4%
4	Canada	65	5.2%
5	Netherlands	23	1.8%
6	Japan	14	1.1%
7	France	12	1%
8	Singapore	10	0.8%
9	Ukraine	7	0.6%
10	Norway	6	0.5%
11	Australia	6	0.5%
12	India	5	0.4%
13	South Africa	5	0.4%
14	Iran, Islamic Republic of	4	0.3%
15	Mongolia	4	0.3%
16	Argentina	4	0.3%
17	Brazil	3	0.2%
18	Cyprus	3	0.2%
19	Korea, Republic of	3	0.2%
20	Hong Kong	3	0.2%
21	Mexico	3	0.2%
22	Poland	3	0.2%
23	Pakistan	2	0.2%
24	Austria	2	0.2%
25	Bangladesh	2	0.2%
26	Denmark	1	0.1%
27	Hungary	1	0.1%
28	Greece	1	0.1%
29	Malaysia	1	0.1%
30	Indonesia	1	0.1%
31	Russia	1	0.1%