Rank	Countries/Territories	Count	Percent
1	United States	312	31.4%
2	China	263	26.5%
3	Germany	69	6.9%
4	Czech Republic	57	5.7%
5	Israel	46	4.6%
6	Japan	36	3.6%
7	Korea, Republic of	32	3.2%
8	India	32	3.2%
9	Singapore	23	2.3%
10	Pakistan	18	1.8%
11	Russia	13	1.3%
12	United Kingdom	10	1%
13	Turkey	6	0.6%
14	Cote D'ivoire	6	0.6%
15	Australia	6	0.6%
16	Canada	5	0.5%
17	Poland	5	0.5%
18	Romania	5	0.5%
19	Slovakia	4	0.4%
20	Netherlands	3	0.3%
21	Hong Kong	3	0.3%
22	Italy	3	0.3%
23	France	3	0.3%
24	Thailand	3	0.3%
25	United Arab Emirates	3	0.3%
26	Ukraine	2	0.2%
27	Bangladesh	2	0.2%
28	Argentina	2	0.2%
29	Brazil	2	0.2%
30	Palestine, State of	2	0.2%
31	Mongolia	2	0.2%
32	Morocco	2	0.2%
33	Jordan	2	0.2%
34	Nigeria	1	0.1%
35	Norway	1	0.1%
36	South Africa	1	0.1%
37	Spain	1	0.1%
38	Taiwan	1	0.1%
39	Serbia	1	0.1%
40	Cyprus	1	0.1%
41	Belarus	1	0.1%
42	Belgium	1	0.1%
43	Greece	1	0.1%
44	Yemen	1	0.1%