Rank	Countries/Territories	Count	Percent
1	United States	311	37.9%
2	China	206	25.1%
3	Germany	117	14.3%
4	Singapore	25	3%
5	Canada	18	2.2%
6	France	14	1.7%
7	Japan	14	1.7%
8	Spain	11	1.3%
9	Turkey	11	1.3%
10	Estonia	10	1.2%
11	Netherlands	8	1%
12	Korea, Republic of	7	0.9%
13	Australia	7	0.9%
14	Greece	7	0.9%
15	Iran, Islamic Republic of	6	0.7%
16	India	5	0.6%
17	Hong Kong	5	0.6%
18	Italy	5	0.6%
19	Argentina	4	0.5%
20	Cyprus	4	0.5%
21	Hungary	3	0.4%
22	Ghana	3	0.4%
23	Ireland	3	0.4%
24	Russia	3	0.4%
25	Norway	2	0.2%
26	Sweden	2	0.2%
27	South Africa	2	0.2%
28	Armenia	2	0.2%
29	Austria	1	0.1%
30	Bangladesh	1	0.1%
31	Thailand	1	0.1%
32	United Kingdom	1	0.1%
33	Mongolia	1	0.1%
34	Morocco	1	0.1%