Rank	Countries/Territories	Count	Percent
1	United States	274	35.8%
2	China	256	33.5%
3	Germany	81	10.6%
4	Japan	20	2.6%
5	Russia	13	1.7%
6	Ireland	12	1.6%
7	Indonesia	11	1.4%
8	India	10	1.3%
9	France	9	1.2%
10	Canada	7	0.9%
11	Netherlands	7	0.9%
12	United Kingdom	7	0.9%
13	Egypt	6	0.8%
14	Iran, Islamic Republic of	6	0.8%
15	Australia	5	0.7%
16	Singapore	5	0.7%
17	Turkey	4	0.5%
18	Saudi Arabia	4	0.5%
19	Hong Kong	4	0.5%
20	Cyprus	3	0.4%
21	Peru	3	0.4%
22	Romania	3	0.4%
23	Slovakia	2	0.3%
24	Spain	2	0.3%
25	Ethiopia	2	0.3%
26	Argentina	2	0.3%
27	Italy	2	0.3%
28	Brazil	1	0.1%
29	Sweden	1	0.1%
30	Ukraine	1	0.1%
31	Norway	1	0.1%
32	Moldova, Republic of	1	0.1%