Rank	Countries/Territories	Count	Percent
1	China	325	33.3%
2	United States	276	28.3%
3	Germany	157	16.1%
4	Japan	35	3.6%
5	India	29	3%
6	Korea, Republic of	25	2.6%
7	Netherlands	25	2.6%
8	Sweden	16	1.6%
9	Russia	13	1.3%
10	France	12	1.2%
11	Ireland	9	0.9%
12	Australia	5	0.5%
13	Turkey	5	0.5%
14	Puerto Rico	4	0.4%
15	Georgia	4	0.4%
16	Egypt	3	0.3%
17	Canada	3	0.3%
18	Cyprus	3	0.3%
19	Italy	3	0.3%
20	Iran, Islamic Republic of	3	0.3%
21	Singapore	3	0.3%
22	Taiwan	3	0.3%
23	Thailand	2	0.2%
24	Ukraine	2	0.2%
25	Pakistan	2	0.2%
26	Philippines	2	0.2%
27	Armenia	2	0.2%
28	Ecuador	1	0.1%
29	Malaysia	1	0.1%
30	Switzerland	1	0.1%
31	Spain	1	0.1%
32	Serbia	1	0.1%