Rank	Countries/Territories	Count	Percent
1	United States	561	34.5%
2	China	544	33.4%
3	Germany	119	7.3%
4	Japan	92	5.7%
5	Singapore	46	2.8%
6		35	2.2%
7	France	29	1.8%
8	Taiwan	21	1.3%
9	Korea, Republic of	19	1.2%
10	Canada	18	1.1%
11	Netherlands	15	0.9%
12	Russia	13	0.8%
13	Switzerland	11	0.7%
14	Sweden	10	0.6%
15	India	10	0.6%
16	Brazil	9	0.6%
17	United Kingdom	9	0.6%
18	Hong Kong	8	0.5%
19	Cyprus	8	0.5%
20	Australia	5	0.3%
21	Iran, Islamic Republic of	5	0.3%
22	Italy	3	0.2%
23	Romania	3	0.2%
24	Nigeria	3	0.2%
25	Norway	3	0.2%
26	Poland	3	0.2%
27	Austria	3	0.2%
28	Argentina	3	0.2%
29	Thailand	3	0.2%
30	Bangladesh	2	0.1%
31	Denmark	2	0.1%
32	Ireland	2	0.1%
33	New Zealand	1	0.1%
34	Malaysia	1	0.1%
35	Mauritius	1	0.1%
36	Qatar	1	0.1%
37	Egypt	1	0.1%
38	Greece	1	0.1%
39	Indonesia	1	0.1%
40	Armenia	1	0.1%
41	Colombia	1	0.1%
42	Ukraine	1	0.1%