Rank	Countries/Territories	Count	Percent
1	United States	301	40%
2	China	251	33.4%
3	Germany	53	7%
4	Spain	19	2.5%
5	Singapore	15	2%
6	Egypt	12	1.6%
7	Japan	10	1.3%
8	Lithuania	8	1.1%
9	Romania	7	0.9%
10	Taiwan	7	0.9%
11	United Kingdom	7	0.9%
12	Viet Nam	6	0.8%
13	Netherlands	5	0.7%
14	Australia	5	0.7%
15	Canada	5	0.7%
16	France	4	0.5%
17	Cyprus	4	0.5%
18	Korea, Republic of	4	0.5%
19	Iran, Islamic Republic of	4	0.5%
20	Russia	3	0.4%
21	Saudi Arabia	3	0.4%
22	South Africa	3	0.4%
23	Sweden	2	0.3%
24	Qatar	2	0.3%
25	United Arab Emirates	2	0.3%
26	Ireland	2	0.3%
27	Italy	2	0.3%
28	Argentina	2	0.3%
29	Brazil	1	0.1%
30	Bulgaria	1	0.1%
31	Hong Kong	1	0.1%
32	Luxembourg	1	0.1%