Rank	Countries/Territories	Count	Percent
1	United States	328	36.7%
2	China	299	33.4%
3	Germany	55	6.2%
4	Latvia	35	3.9%
5	Greece	21	2.3%
6	Hong Kong	19	2.1%
7	Singapore	17	1.9%
8	Japan	15	1.7%
9	Netherlands	13	1.5%
10	France	11	1.2%
11	Cyprus	10	1.1%
12	Korea, Republic of	9	1%
13	India	6	0.7%
14	Italy	6	0.7%
15	Canada	5	0.6%
16	Bangladesh	4	0.4%
17	Iran, Islamic Republic of	4	0.4%
18	Israel	4	0.4%
19	United Kingdom	4	0.4%
20	Turkey	3	0.3%
21	Mongolia	3	0.3%
22	Norway	3	0.3%
23	Switzerland	3	0.3%
24	Taiwan	2	0.2%
25	Tanzania, United Republic of	2	0.2%
26	South Africa	2	0.2%
27	Russia	2	0.2%
28	Lebanon	2	0.2%
29	Australia	2	0.2%
30	Egypt	2	0.2%
31	Czech Republic	1	0.1%
32	Brazil	1	0.1%
33	Spain	1	0.1%