Rank	Countries/Territories	Count	Percent
1	United States	572	34.2%
2	China	570	34.1%
3	Germany	216	12.9%
4	India	31	1.9%
5	Netherlands	23	1.4%
6	Korea, Republic of	22	1.3%
7	Hong Kong	19	1.1%
8	France	18	1.1%
9	Spain	16	1%
10	Japan	15	0.9%
11	Norway	14	0.8%
12	Switzerland	13	0.8%
13	United Kingdom	13	0.8%
14	Canada	12	0.7%
15	Cyprus	11	0.7%
16	Czech Republic	10	0.6%
17	Taiwan	10	0.6%
18	Russia	10	0.6%
19	Iran, Islamic Republic of	9	0.5%
20	Singapore	8	0.5%
21	Turkey	7	0.4%
22	Australia	7	0.4%
23	New Zealand	7	0.4%
24	Italy	7	0.4%
25	Ireland	6	0.4%
26	Poland	5	0.3%
27	Belgium	4	0.2%
28	Brazil	2	0.1%
29	Egypt	2	0.1%
30	Portugal	2	0.1%
31	Mongolia	2	0.1%
32	Romania	1	0.1%
33	Serbia	1	0.1%
34	Thailand	1	0.1%
35	Cambodia	1	0.1%
36	Iraq	1	0.1%
37	Chile	1	0.1%
38	Hungary	1	0.1%
39	Ukraine	1	0.1%