Rank	Countries/Territories	Count	Percent
1	United States	289	36.4%
2	China	207	26.1%
3	Germany	101	12.7%
4	Japan	36	4.5%
5	Canada	22	2.8%
6	Romania	13	1.6%
7	France	12	1.5%
8	Netherlands	11	1.4%
9	Turkey	9	1.1%
10	Austria	9	1.1%
11	Australia	8	1%
12	Ireland	8	1%
13	Singapore	8	1%
14	Korea, Republic of	8	1%
15	Italy	7	0.9%
16	Palestine, State of	4	0.5%
17	Mexico	3	0.4%
18	Russia	3	0.4%
19	Indonesia	3	0.4%
20	Iran, Islamic Republic of	3	0.4%
21	Ethiopia	3	0.4%
22	Brazil	3	0.4%
23	Cyprus	3	0.4%
24	Denmark	2	0.3%
25	Argentina	2	0.3%
26	Ukraine	2	0.3%
27	United Kingdom	2	0.3%
28	India	2	0.3%
29	Malaysia	2	0.3%
30	Nicaragua	2	0.3%
31	Norway	1	0.1%
32	Philippines	1	0.1%
33	Poland	1	0.1%
34	Czech Republic	1	0.1%
35	Greece	1	0.1%
36	Hong Kong	1	0.1%