Rank	Countries/Territories	Count	Percent
1	United States	290	38.2%
2	China	234	30.8%
3	Germany	79	10.4%
4	Japan	15	2%
5	Korea, Republic of	14	1.8%
6	Singapore	13	1.7%
7	Iran, Islamic Republic of	12	1.6%
8	Egypt	11	1.4%
9	France	10	1.3%
10	Netherlands	10	1.3%
11	India	9	1.2%
12	Russia	9	1.2%
13	Canada	8	1.1%
14	Cyprus	6	0.8%
15	Switzerland	6	0.8%
16	United Kingdom	3	0.4%
17	Palestine, State of	3	0.4%
18	Australia	3	0.4%
19	Austria	2	0.3%
20	Brazil	2	0.3%
21	Finland	2	0.3%
22	Ireland	2	0.3%
23	Israel	2	0.3%
24	Malaysia	2	0.3%
25	Hong Kong	2	0.3%
26	Spain	2	0.3%
27	Thailand	2	0.3%
28	Viet Nam	2	0.3%
29	Sweden	1	0.1%
30	Saudi Arabia	1	0.1%
31	Norway	1	0.1%
32	Hungary	1	0.1%
33	Greece	1	0.1%