Rank	Countries/Territories	Count	Percent
1	United States	415	42.9%
2	China	313	32.4%
3	Germany	83	8.6%
4	India	30	3.1%
5	United Kingdom	13	1.3%
6	France	12	1.2%
7	Japan	12	1.2%
8	Korea, Republic of	11	1.1%
9	Netherlands	11	1.1%
10	Singapore	9	0.9%
11	Russia	6	0.6%
12	Spain	5	0.5%
13	Italy	4	0.4%
14	Switzerland	4	0.4%
15	Kenya	4	0.4%
16	Canada	4	0.4%
17	Egypt	4	0.4%
18	Australia	3	0.3%
19	Iran, Islamic Republic of	3	0.3%
20	Mexico	3	0.3%
21	Viet Nam	3	0.3%
22	Mongolia	2	0.2%
23	Israel	2	0.2%
24	Lebanon	2	0.2%
25	Argentina	2	0.2%
26	Cyprus	1	0.1%
27	Indonesia	1	0.1%
28	Ireland	1	0.1%
29	Taiwan	1	0.1%
30	Turkey	1	0.1%
31	Ukraine	1	0.1%
32	Sweden	1	0.1%