Rank	Countries/Territories	Count	Percent
1	United States	441	39.2%
2	China	383	34%
3	Germany	104	9.2%
4	Italy	26	2.3%
5	France	24	2.1%
6	Japan	18	1.6%
7	Canada	17	1.5%
8	Korea, Republic of	16	1.4%
9	United Kingdom	9	0.8%
10	Australia	9	0.8%
11	India	9	0.8%
12	Netherlands	7	0.6%
13	Poland	7	0.6%
14	Singapore	6	0.5%
15	Taiwan	5	0.4%
16	Ireland	5	0.4%
17	Egypt	4	0.4%
18	Turkey	4	0.4%
19	Spain	4	0.4%
20	Latvia	4	0.4%
21	Lithuania	3	0.3%
22	Viet Nam	3	0.3%
23	Cyprus	3	0.3%
24	Hong Kong	2	0.2%
25	Romania	2	0.2%
26	Russia	2	0.2%
27	Yemen	2	0.2%
28	Sweden	2	0.2%
29	Ukraine	2	0.2%
30	Kenya	1	0.1%
31	Bangladesh	1	0.1%