Rank	Countries/Territories	Count	Percent
1	United States	588	38.1%
2	China	449	29.1%
3	Germany	202	13.1%
4	Japan	44	2.8%
5	India	36	2.3%
6	Canada	30	1.9%
7	France	18	1.2%
8	Netherlands	18	1.2%
9	United Kingdom	16	1%
10	Singapore	15	1%
11	Korea, Republic of	15	1%
12		15	1%
13	Hong Kong	11	0.7%
14	Taiwan	9	0.6%
15	Czech Republic	8	0.5%
16	Ireland	6	0.4%
17	Cyprus	5	0.3%
18	Australia	4	0.3%
19	Egypt	4	0.3%
20	Kenya	4	0.3%
21	Spain	4	0.3%
22	Mexico	4	0.3%
23	Norway	4	0.3%
24	Pakistan	4	0.3%
25	Romania	4	0.3%
26	Russia	4	0.3%
27	Mongolia	3	0.2%
28	South Africa	3	0.2%
29	Turkey	3	0.2%
30	Viet Nam	2	0.1%
31	Israel	2	0.1%
32	Iran, Islamic Republic of	2	0.1%
33	Greece	2	0.1%
34	Belgium	1	0.1%
35	New Zealand	1	0.1%
36	Sweden	1	0.1%
37	Switzerland	1	0.1%
38	Thailand	1	0.1%
39	Lithuania	1	0.1%
40	Ukraine	1	0.1%