Rank	Countries/Territories	Count	Percent
1	United States	264	39.8%
2	China	188	28.3%
3	Germany	49	7.4%
4	Korea, Republic of	22	3.3%
5	Netherlands	19	2.9%
6	France	13	2%
7	Canada	12	1.8%
8	Japan	11	1.7%
9	Singapore	10	1.5%
10	Italy	9	1.4%
11	Bulgaria	6	0.9%
12	Spain	6	0.9%
13	South Africa	5	0.8%
14	Lithuania	5	0.8%
15	Belgium	4	0.6%
16	Russia	4	0.6%
17	Turkey	3	0.5%
18	Romania	3	0.5%
19	Argentina	3	0.5%
20	Australia	3	0.5%
21	Cyprus	3	0.5%
22	Brazil	2	0.3%
23	Morocco	2	0.3%
24	Egypt	2	0.3%
25	Ireland	2	0.3%
26	Norway	2	0.3%
27	Portugal	2	0.3%
28	Ukraine	2	0.3%
29	United Kingdom	2	0.3%
30	Taiwan	2	0.3%
31	Sweden	1	0.2%
32	Nigeria	1	0.2%
33	Georgia	1	0.2%
34	Denmark	1	0.2%