Rank	Countries/Territories	Count	Percent
1	United States	504	39.4%
2	China	452	35.3%
3	Germany	96	7.5%
4	France	39	3%
5	Canada	34	2.7%
6	Ireland	28	2.2%
7	Netherlands	14	1.1%
8	United Kingdom	13	1%
9	Korea, Republic of	12	0.9%
10	Australia	11	0.9%
11	Czech Republic	7	0.5%
12	India	7	0.5%
13	Japan	7	0.5%
14	Singapore	6	0.5%
15	Italy	6	0.5%
16	Iran, Islamic Republic of	5	0.4%
17	Russia	5	0.4%
18	Cyprus	4	0.3%
19	Argentina	3	0.2%
20	Greece	3	0.2%
21	Ukraine	3	0.2%
22	Sweden	3	0.2%
23	Taiwan	2	0.2%
24	Turkey	2	0.2%
25	Mongolia	2	0.2%
26	Norway	2	0.2%
27	Egypt	2	0.2%
28	Bulgaria	1	0.1%
29	Chile	1	0.1%
30	Oman	1	0.1%
31	Philippines	1	0.1%
32	Portugal	1	0.1%
33	Morocco	1	0.1%
34	Malaysia	1	0.1%