Rank	Countries/Territories	Count	Percent
1	United States	617	37.9%
2	China	467	28.7%
3	Germany	203	12.5%
4	Japan	47	2.9%
5		38	2.3%
6	India	36	2.2%
7	Canada	30	1.8%
8	Netherlands	19	1.2%
9	France	18	1.1%
10	Singapore	16	1%
11	United Kingdom	16	1%
12	Korea, Republic of	15	0.9%
13	Hong Kong	11	0.7%
14	Taiwan	9	0.6%
15	Czech Republic	8	0.5%
16	Australia	7	0.4%
17	Cyprus	6	0.4%
18	Ireland	6	0.4%
19	Kenya	4	0.2%
20	Egypt	4	0.2%
21	Spain	4	0.2%
22	Mexico	4	0.2%
23	Mongolia	4	0.2%
24	Norway	4	0.2%
25	Pakistan	4	0.2%
26	Romania	4	0.2%
27	Russia	4	0.2%
28	South Africa	3	0.2%
29	Iran, Islamic Republic of	3	0.2%
30	Turkey	3	0.2%
31	Viet Nam	2	0.1%
32	Greece	2	0.1%
33	Israel	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%