Rank	Countries/Territories	Count	Percent
1	United States	278	31.8%
2	China	270	30.9%
3	Germany	77	8.8%
4	Czech Republic	33	3.8%
5	France	33	3.8%
6	United Kingdom	20	2.3%
7	Japan	16	1.8%
8	Canada	15	1.7%
9	Spain	11	1.3%
10	Italy	10	1.1%
11	Turkey	9	1%
12	India	9	1%
13	Australia	8	0.9%
14	Uzbekistan	8	0.9%
15	Algeria	7	0.8%
16	Brazil	7	0.8%
17	Palestine, State of	7	0.8%
18	Indonesia	6	0.7%
19	Ireland	6	0.7%
20	Cyprus	6	0.7%
21	Netherlands	4	0.5%
22	Singapore	4	0.5%
23	Qatar	3	0.3%
24	Russia	3	0.3%
25	Bangladesh	3	0.3%
26	Hong Kong	3	0.3%
27	Hungary	3	0.3%
28	Argentina	2	0.2%
29	Chile	2	0.2%
30	Rwanda	2	0.2%
31	Senegal	2	0.2%
32	Sweden	1	0.1%
33	Taiwan	1	0.1%
34	Poland	1	0.1%
35	Korea, Republic of	1	0.1%
36	Malaysia	1	0.1%
37	Mongolia	1	0.1%
38	Benin	1	0.1%
39	Egypt	1	0.1%