Rank	Countries/Territories	Count	Percent
1	United States	344	40.4%
2	China	242	28.4%
3	Germany	57	6.7%
4	South Africa	22	2.6%
5	Russia	20	2.4%
6	Japan	19	2.2%
7	Saudi Arabia	15	1.8%
8	Iran, Islamic Republic of	15	1.8%
9	Korea, Republic of	13	1.5%
10	Canada	10	1.2%
11	Ireland	9	1.1%
12	Cyprus	8	0.9%
13	Spain	8	0.9%
14	Netherlands	7	0.8%
15	Singapore	6	0.7%
16	Australia	6	0.7%
17	Brazil	6	0.7%
18	Poland	4	0.5%
19	Taiwan	4	0.5%
20	Turkey	4	0.5%
21	United Kingdom	4	0.5%
22	Italy	3	0.4%
23	Switzerland	2	0.2%
24	Ukraine	2	0.2%
25	Romania	2	0.2%
26	Nigeria	2	0.2%
27	Bulgaria	2	0.2%
28	Argentina	2	0.2%
29	Colombia	2	0.2%
30	India	2	0.2%
31	Indonesia	2	0.2%
32	Israel	1	0.1%
33	Czech Republic	1	0.1%
34	Egypt	1	0.1%
35	France	1	0.1%
36	Bangladesh	1	0.1%
37	Sri Lanka	1	0.1%
38	Sweden	1	0.1%