Rank	Countries/Territories	Count	Percent
1	United States	214	39.9%
2	China	136	25.4%
3	Germany	71	13.2%
4	Japan	19	3.5%
5	Canada	14	2.6%
6	France	10	1.9%
7	Russia	7	1.3%
8	Spain	6	1.1%
9	Norway	5	0.9%
10	Netherlands	5	0.9%
11	United Kingdom	5	0.9%
12	Viet Nam	4	0.7%
13	Peru	3	0.6%
14	India	3	0.6%
15	Cyprus	3	0.6%
16	Czech Republic	2	0.4%
17	Costa Rica	2	0.4%
18	Azerbaijan	2	0.4%
19	Ireland	2	0.4%
20	Italy	2	0.4%
21	Hungary	2	0.4%
22	Turkey	2	0.4%
23	Ukraine	2	0.4%
24	Slovakia	2	0.4%
25	South Africa	2	0.4%
26	Sweden	1	0.2%
27	Switzerland	1	0.2%
28	Singapore	1	0.2%
29	Nigeria	1	0.2%
30	Korea, Republic of	1	0.2%
31	Malaysia	1	0.2%
32	Georgia	1	0.2%
33	Iran, Islamic Republic of	1	0.2%
34	Belgium	1	0.2%
35	Bosnia and Herzegovina	1	0.2%
36	Austria	1	0.2%