Rank	Countries/Territories	Count	Percent
1	United States	617	40.3%
2	China	518	33.9%
3	Germany	145	9.5%
4	Japan	32	2.1%
5	France	28	1.8%
6		22	1.4%
7	India	20	1.3%
8	Singapore	20	1.3%
9	Australia	19	1.2%
10	Netherlands	18	1.2%
11	Canada	11	0.7%
12	Russia	10	0.7%
13	Korea, Republic of	9	0.6%
14	United Kingdom	8	0.5%
15	Ukraine	7	0.5%
16	Spain	7	0.5%
17	Argentina	6	0.4%
18	Cyprus	4	0.3%
19	Ireland	4	0.3%
20	Norway	3	0.2%
21	Sweden	3	0.2%
22	Brazil	3	0.2%
23	Hong Kong	3	0.2%
24	Iran, Islamic Republic of	2	0.1%
25	Latvia	2	0.1%
26	Malaysia	1	0.1%
27	Mexico	1	0.1%
28	Mongolia	1	0.1%
29	Switzerland	1	0.1%
30	Taiwan	1	0.1%
31	Georgia	1	0.1%
32	Ghana	1	0.1%
33	Bulgaria	1	0.1%
34	Bangladesh	1	0.1%