Rank	Countries/Territories	Count	Percent
1	United States	327	33.9%
2	China	302	31.3%
3	Japan	84	8.7%
4	Germany	54	5.6%
5	Singapore	25	2.6%
6	Iran, Islamic Republic of	23	2.4%
7	Romania	17	1.8%
8	Spain	14	1.5%
9	Netherlands	13	1.3%
10	India	11	1.1%
11	France	10	1%
12	Italy	9	0.9%
13	United Kingdom	8	0.8%
14	Cyprus	8	0.8%
15	Ireland	7	0.7%
16	Korea, Republic of	7	0.7%
17	Hong Kong	6	0.6%
18	Canada	5	0.5%
19	Switzerland	4	0.4%
20	Taiwan	4	0.4%
21	Sweden	3	0.3%
22	Russia	3	0.3%
23	Hungary	3	0.3%
24	Kazakhstan	3	0.3%
25	Australia	2	0.2%
26	Bosnia and Herzegovina	2	0.2%
27	Thailand	2	0.2%
28	Ukraine	2	0.2%
29	Malaysia	1	0.1%
30	Norway	1	0.1%
31	Philippines	1	0.1%
32	Brazil	1	0.1%
33	Austria	1	0.1%
34	Argentina	1	0.1%
35	Egypt	1	0.1%