Rank	Countries/Territories	Count	Percent
1	United States	465	34.9%
2	China	416	31.2%
3	Germany	115	8.6%
4	Japan	38	2.9%
5	Russia	32	2.4%
6	France	29	2.2%
7	Ireland	28	2.1%
8	Singapore	22	1.7%
9	Spain	22	1.7%
10	Canada	21	1.6%
11	Netherlands	19	1.4%
12	United Kingdom	16	1.2%
13	Iran, Islamic Republic of	13	1%
14	Denmark	12	0.9%
15	India	11	0.8%
16	Sweden	11	0.8%
17	Australia	10	0.8%
18	Argentina	7	0.5%
19	Italy	7	0.5%
20	Turkey	5	0.4%
21	Mexico	4	0.3%
22	Hong Kong	4	0.3%
23	Bangladesh	4	0.3%
24	Cyprus	3	0.2%
25	Hungary	3	0.2%
26	Korea, Republic of	3	0.2%
27	Luxembourg	3	0.2%
28	Switzerland	2	0.2%
29	Ecuador	2	0.2%
30	Belgium	1	0.1%
31	Latvia	1	0.1%
32	Mongolia	1	0.1%
33	Ukraine	1	0.1%
34	Portugal	1	0.1%
35	Romania	1	0.1%