Rank	Countries/Territories	Count	Percent
1	United States	576	39.4%
2	China	397	27.2%
3	Germany	168	11.5%
4	Canada	114	7.8%
5	Japan	38	2.6%
6	Netherlands	17	1.2%
7	France	15	1%
8	Australia	13	0.9%
9	Brazil	12	0.8%
10	Slovakia	11	0.8%
11	Russia	10	0.7%
12	Cyprus	9	0.6%
13	Turkey	7	0.5%
14	Korea, Republic of	7	0.5%
15	Singapore	6	0.4%
16	Romania	6	0.4%
17	United Kingdom	6	0.4%
18	Norway	5	0.3%
19	Israel	5	0.3%
20	Hong Kong	5	0.3%
21	Austria	4	0.3%
22	India	3	0.2%
23	Ukraine	3	0.2%
24	Sweden	3	0.2%
25	Thailand	2	0.1%
26	Spain	2	0.1%
27	Jordan	2	0.1%
28	Iran, Islamic Republic of	2	0.1%
29	Italy	2	0.1%
30	Belgium	2	0.1%
31	Czech Republic	2	0.1%
32	Denmark	1	0.1%
33	Estonia	1	0.1%
34	Argentina	1	0.1%
35	Chile	1	0.1%
36	Iraq	1	0.1%
37	Ireland	1	0.1%
38	Oman	1	0.1%
39	Portugal	1	0.1%