Rank	Countries/Territories	Count	Percent
1	United States	284	33.4%
2	China	244	28.7%
3	Japan	64	7.5%
4	Germany	63	7.4%
5	Brazil	34	4%
6	Netherlands	18	2.1%
7	Singapore	16	1.9%
8	Ukraine	16	1.9%
9	Israel	16	1.9%
10	France	12	1.4%
11	Spain	12	1.4%
12	Sweden	12	1.4%
13	India	10	1.2%
14	Australia	9	1.1%
15	Canada	8	0.9%
16	Ireland	6	0.7%
17	Russia	5	0.6%
18	United Kingdom	4	0.5%
19	Argentina	4	0.5%
20	Belgium	2	0.2%
21	Iran, Islamic Republic of	2	0.2%
22	Turkey	2	0.2%
23	Malaysia	2	0.2%
24	Mongolia	1	0.1%
25	Portugal	1	0.1%
26	Hong Kong	1	0.1%
27	Korea, Republic of	1	0.1%
28	Cyprus	1	0.1%
29	Denmark	1	0.1%