Rank	Countries/Territories	Count	Percent
1	United States	237	34.6%
2	China	204	29.8%
3	Germany	46	6.7%
4	Pakistan	39	5.7%
5	France	37	5.4%
6	Spain	15	2.2%
7	United Kingdom	11	1.6%
8	Iran, Islamic Republic of	10	1.5%
9	Netherlands	10	1.5%
10	Hong Kong	9	1.3%
11	Indonesia	9	1.3%
12	Singapore	7	1%
13	Norway	6	0.9%
14	Japan	5	0.7%
15	Thailand	5	0.7%
16	Ireland	4	0.6%
17	Italy	4	0.6%
18	India	4	0.6%
19	Cyprus	4	0.6%
20	Taiwan	3	0.4%
21	Ukraine	2	0.3%
22	Viet Nam	2	0.3%
23	Brazil	2	0.3%
24	Canada	2	0.3%
25	Kenya	2	0.3%
26	Korea, Republic of	1	0.1%
27	Mongolia	1	0.1%
28	Egypt	1	0.1%
29	Australia	1	0.1%
30	Palestine, State of	1	0.1%