Rank	Countries/Territories	Count	Percent
1	United States	546	51.2%
2	China	232	21.7%
3	Germany	111	10.4%
4	France	43	4%
5	Korea, Republic of	31	2.9%
6	Spain	13	1.2%
7	Japan	12	1.1%
8	Netherlands	7	0.7%
9	Romania	6	0.6%
10	Australia	6	0.6%
11	Canada	6	0.6%
12	Egypt	5	0.5%
13	Cyprus	5	0.5%
14	Ireland	5	0.5%
15	Hong Kong	4	0.4%
16	Viet Nam	4	0.4%
17	Ukraine	4	0.4%
18	Singapore	3	0.3%
19	Malaysia	3	0.3%
20	Italy	2	0.2%
21	India	2	0.2%
22	Iran, Islamic Republic of	2	0.2%
23	Denmark	2	0.2%
24	Argentina	2	0.2%
25	Saudi Arabia	2	0.2%
26	Norway	2	0.2%
27	Peru	2	0.2%
28	Switzerland	2	0.2%
29	United Kingdom	1	0.1%
30	Sweden	1	0.1%
31	Bangladesh	1	0.1%