Rank	Countries/Territories	Count	Percent
1	United States	322	33%
2	China	310	31.8%
3	Germany	85	8.7%
4	Japan	49	5%
5	United Kingdom	19	1.9%
6	Saudi Arabia	17	1.7%
7	Canada	16	1.6%
8	France	13	1.3%
9	Korea, Republic of	12	1.2%
10	Ethiopia	11	1.1%
11	Singapore	10	1%
12	Netherlands	9	0.9%
13	Mexico	8	0.8%
14	India	8	0.8%
15	Brazil	8	0.8%
16	Italy	7	0.7%
17	Malaysia	6	0.6%
18	Taiwan	6	0.6%
19	Puerto Rico	5	0.5%
20	Romania	5	0.5%
21	Iran, Islamic Republic of	5	0.5%
22	Cyprus	5	0.5%
23	Denmark	5	0.5%
24	Greece	5	0.5%
25	Australia	4	0.4%
26	Belgium	4	0.4%
27	Hong Kong	3	0.3%
28	Indonesia	3	0.3%
29	Sweden	3	0.3%
30	Thailand	2	0.2%
31	Russia	2	0.2%
32	Slovakia	2	0.2%
33	Hungary	2	0.2%
34	Argentina	1	0.1%
35	Bangladesh	1	0.1%
36	Switzerland	1	0.1%
37	Lebanon	1	0.1%
38	Norway	1	0.1%