Rank	Countries/Territories	Count	Percent
1	United States	563	43.1%
2	China	437	33.5%
3	Germany	145	11.1%
4	Japan	28	2.1%
5	France	22	1.7%
6	Canada	19	1.5%
7	Taiwan	14	1.1%
8	Singapore	13	1%
9	Cyprus	9	0.7%
10	Netherlands	8	0.6%
11	India	6	0.5%
12	Iran, Islamic Republic of	5	0.4%
13	Norway	5	0.4%
14	Ukraine	4	0.3%
15	Egypt	3	0.2%
16	Sweden	3	0.2%
17	Austria	3	0.2%
18	Australia	2	0.2%
19	Denmark	2	0.2%
20	Greece	2	0.2%
21	Malaysia	2	0.2%
22	South Africa	2	0.2%
23	Spain	1	0.1%
24	Mexico	1	0.1%
25	Mongolia	1	0.1%
26	Korea, Republic of	1	0.1%
27	Latvia	1	0.1%
28	Hong Kong	1	0.1%
29	Ireland	1	0.1%
30	Georgia	1	0.1%
31	Argentina	1	0.1%