Rank	Countries/Territories	Count	Percent
1	United States	344	39.8%
2	China	250	28.9%
3	Germany	126	14.6%
4	Iran, Islamic Republic of	14	1.6%
5	Netherlands	14	1.6%
6	Palestine, State of	14	1.6%
7	Japan	12	1.4%
8	India	10	1.2%
9	Korea, Republic of	9	1%
10	Canada	9	1%
11	France	8	0.9%
12	Switzerland	7	0.8%
13	Russia	7	0.8%
14	Australia	6	0.7%
15	Ireland	5	0.6%
16	United Kingdom	5	0.6%
17	Argentina	4	0.5%
18	Cyprus	3	0.3%
19	Ukraine	3	0.3%
20	Pakistan	2	0.2%
21	Singapore	2	0.2%
22	Sweden	2	0.2%
23	Chile	2	0.2%
24	Hong Kong	2	0.2%
25	Italy	1	0.1%
26	New Zealand	1	0.1%
27	Norway	1	0.1%
28	Belgium	1	0.1%
29	Brazil	1	0.1%