Rank	Countries/Territories	Count	Percent
1	United States	222	32.2%
2	China	204	29.6%
3	Germany	67	9.7%
4	Russia	30	4.4%
5	Spain	17	2.5%
6	Egypt	14	2%
7	France	14	2%
8	Japan	13	1.9%
9	India	12	1.7%
10	Singapore	11	1.6%
11	Netherlands	8	1.2%
12	Korea, Republic of	7	1%
13	Ireland	6	0.9%
14	Canada	5	0.7%
15	Cyprus	5	0.7%
16	Palestine, State of	5	0.7%
17	Malaysia	4	0.6%
18	Australia	4	0.6%
19	Iran, Islamic Republic of	4	0.6%
20	Ghana	4	0.6%
21	Italy	3	0.4%
22	Belgium	3	0.4%
23	Turkey	3	0.4%
24	United Kingdom	3	0.4%
25	Saudi Arabia	3	0.4%
26	Peru	2	0.3%
27	New Zealand	2	0.3%
28	Thailand	2	0.3%
29	Bangladesh	2	0.3%
30	Czech Republic	2	0.3%
31	Iraq	2	0.3%
32	Israel	1	0.1%
33	Brazil	1	0.1%
34	Ukraine	1	0.1%
35	Taiwan	1	0.1%
36	Norway	1	0.1%
37	Lithuania	1	0.1%