Rank	Countries/Territories	Count	Percent
1	United States	399	46.3%
2	China	163	18.9%
3	Korea, Republic of	114	13.2%
4	Germany	59	6.8%
5	Japan	21	2.4%
6	Netherlands	15	1.7%
7	India	10	1.2%
8	France	10	1.2%
9	Canada	9	1%
10	Ireland	8	0.9%
11	Australia	5	0.6%
12	Cyprus	5	0.6%
13	Singapore	5	0.6%
14	United Kingdom	5	0.6%
15	Tunisia	4	0.5%
16	Slovakia	3	0.3%
17	Russia	3	0.3%
18	Puerto Rico	3	0.3%
19	Malaysia	3	0.3%
20	Poland	2	0.2%
21	Iran, Islamic Republic of	2	0.2%
22	Romania	2	0.2%
23	South Africa	2	0.2%
24	Sweden	2	0.2%
25	Switzerland	2	0.2%
26	Ukraine	1	0.1%
27	Indonesia	1	0.1%
28	Mongolia	1	0.1%
29	Colombia	1	0.1%
30	Belgium	1	0.1%
31	Argentina	1	0.1%