Rank	Countries/Territories	Count	Percent
1	United States	601	39.6%
2	China	441	29.1%
3	Germany	119	7.8%
4	Japan	57	3.8%
5	France	56	3.7%
6	Australia	47	3.1%
7	Singapore	40	2.6%
8	Latvia	38	2.5%
9	Switzerland	27	1.8%
10	Netherlands	21	1.4%
11	Ukraine	13	0.9%
12	Bangladesh	8	0.5%
13	Cyprus	7	0.5%
14	Canada	6	0.4%
15	Argentina	5	0.3%
16	Korea, Republic of	5	0.3%
17	Norway	3	0.2%
18	United Kingdom	3	0.2%
19	India	3	0.2%
20	Lithuania	2	0.1%
21	Chile	2	0.1%
22	Ecuador	2	0.1%
23	Georgia	2	0.1%
24	Taiwan	2	0.1%
25	Thailand	2	0.1%
26	Mexico	1	0.1%
27	Mongolia	1	0.1%
28	Iran, Islamic Republic of	1	0.1%
29	Ireland	1	0.1%
30	Hong Kong	1	0.1%