Rank	Countries/Territories	Count	Percent
1	United States	387	46%
2	China	163	19.4%
3	Germany	90	10.7%
4	Spain	27	3.2%
5	Japan	15	1.8%
6	India	15	1.8%
7	Brazil	15	1.8%
8	Canada	14	1.7%
9	Netherlands	14	1.7%
10	Russia	11	1.3%
11	Singapore	11	1.3%
12	France	11	1.3%
13	Ireland	7	0.8%
14	Italy	7	0.8%
15	United Kingdom	6	0.7%
16	Norway	6	0.7%
17	Slovakia	5	0.6%
18	Austria	5	0.6%
19	Belgium	4	0.5%
20	Argentina	4	0.5%
21	Australia	4	0.5%
22	Iran, Islamic Republic of	4	0.5%
23	Sweden	3	0.4%
24	Switzerland	2	0.2%
25	Malaysia	2	0.2%
26	Mexico	2	0.2%
27	Bulgaria	2	0.2%
28	Cyprus	2	0.2%
29	Hong Kong	1	0.1%
30	Taiwan	1	0.1%
31	Turkey	1	0.1%