Rank	Countries/Territories	Count	Percent
1	United States	324	34.3%
2	China	308	32.6%
3	Germany	134	14.2%
4	Netherlands	30	3.2%
5	Singapore	17	1.8%
6	Japan	15	1.6%
7	Turkey	14	1.5%
8	United Kingdom	10	1.1%
9	Hong Kong	10	1.1%
10	France	9	1%
11	Korea, Republic of	7	0.7%
12		7	0.7%
13	Russia	7	0.7%
14	Australia	6	0.6%
15	Cyprus	5	0.5%
16	Portugal	4	0.4%
17	Spain	3	0.3%
18	Nigeria	3	0.3%
19	Sweden	3	0.3%
20	Italy	3	0.3%
21	India	3	0.3%
22	Iran, Islamic Republic of	2	0.2%
23	Iraq	2	0.2%
24	Estonia	2	0.2%
25	Taiwan	2	0.2%
26	Ukraine	2	0.2%
27	Romania	2	0.2%
28	Sri Lanka	1	0.1%
29	Norway	1	0.1%
30	Peru	1	0.1%
31	Philippines	1	0.1%
32	Switzerland	1	0.1%
33	Ghana	1	0.1%
34	Greece	1	0.1%
35	Belgium	1	0.1%
36	Brazil	1	0.1%
37	Ireland	1	0.1%
38	Luxembourg	1	0.1%