Rank	Countries/Territories	Count	Percent
1	United States	296	37.5%
2	China	280	35.4%
3	Germany	61	7.7%
4	Egypt	21	2.7%
5	France	21	2.7%
6	Singapore	15	1.9%
7	Netherlands	14	1.8%
8	Japan	11	1.4%
9	Canada	9	1.1%
10	Cyprus	7	0.9%
11	Korea, Republic of	6	0.8%
12		4	0.5%
13	United Kingdom	4	0.5%
14	Italy	3	0.4%
15	Lithuania	3	0.4%
16	Mongolia	3	0.4%
17	Australia	3	0.4%
18	Greece	3	0.4%
19	Hong Kong	3	0.4%
20	India	3	0.4%
21	Indonesia	2	0.3%
22	Latvia	2	0.3%
23	Ireland	2	0.3%
24	Bulgaria	2	0.3%
25	Argentina	2	0.3%
26	Russia	2	0.3%
27	Slovakia	2	0.3%
28	Taiwan	2	0.3%
29	Turkey	2	0.3%
30	Switzerland	1	0.1%
31	Iran, Islamic Republic of	1	0.1%