Rank	Countries/Territories	Count	Percent
1	China	259	35.2%
2	United States	259	35.2%
3	Germany	77	10.5%
4	Russia	33	4.5%
5	France	20	2.7%
6	Japan	12	1.6%
7	Singapore	8	1.1%
8	Netherlands	8	1.1%
9	Ukraine	7	1%
10	Korea, Republic of	6	0.8%
11	Egypt	4	0.5%
12	Australia	4	0.5%
13	United Kingdom	4	0.5%
14	New Zealand	4	0.5%
15	Taiwan	4	0.5%
16	Canada	3	0.4%
17	Cyprus	3	0.4%
18	Ireland	3	0.4%
19	Iran, Islamic Republic of	2	0.3%
20	Mexico	2	0.3%
21	Mongolia	2	0.3%
22	Argentina	2	0.3%
23	Romania	2	0.3%
24	Sweden	2	0.3%
25	Switzerland	2	0.3%
26	Colombia	1	0.1%
27	Malaysia	1	0.1%
28	Hong Kong	1	0.1%
29	Hungary	1	0.1%