Rank	Countries/Territories	Count	Percent
1	United States	305	44.7%
2	China	162	23.7%
3	Germany	67	9.8%
4	India	30	4.4%
5	Palestine, State of	13	1.9%
6	France	12	1.8%
7	Israel	9	1.3%
8	Russia	8	1.2%
9	Canada	7	1%
10	Netherlands	6	0.9%
11	Singapore	5	0.7%
12	Romania	5	0.7%
13	United Kingdom	5	0.7%
14	Viet Nam	4	0.6%
15	Mexico	3	0.4%
16	Slovakia	3	0.4%
17	Norway	3	0.4%
18	Korea, Republic of	3	0.4%
19	Iraq	3	0.4%
20	Ireland	3	0.4%
21	Brazil	3	0.4%
22	Austria	2	0.3%
23	Cyprus	2	0.3%
24	Egypt	2	0.3%
25	Malaysia	2	0.3%
26	Italy	2	0.3%
27	Japan	2	0.3%
28	South Africa	2	0.3%
29	Spain	2	0.3%
30	Poland	2	0.3%
31	Ukraine	2	0.3%
32	Thailand	2	0.3%
33	Turkey	1	0.1%
34	Switzerland	1	0.1%