Rank	Countries/Territories	Count	Percent
1	United States	373	36.7%
2	China	299	29.5%
3	Japan	108	10.6%
4	Germany	70	6.9%
5	Iran, Islamic Republic of	23	2.3%
6	France	22	2.2%
7	Russia	16	1.6%
8	Singapore	16	1.6%
9	United Kingdom	15	1.5%
10	Netherlands	10	1%
11	Taiwan	6	0.6%
12	Hong Kong	6	0.6%
13	Korea, Republic of	6	0.6%
14	Brazil	6	0.6%
15	Canada	5	0.5%
16	India	5	0.5%
17	Australia	4	0.4%
18	Egypt	3	0.3%
19	Cyprus	2	0.2%
20	Belgium	2	0.2%
21	Georgia	2	0.2%
22	Mauritius	2	0.2%
23	Mongolia	2	0.2%
24	Poland	2	0.2%
25	South Africa	2	0.2%
26	Sweden	2	0.2%
27	Romania	1	0.1%
28	New Zealand	1	0.1%
29	Pakistan	1	0.1%
30	Malaysia	1	0.1%
31	Chile	1	0.1%
32	Argentina	1	0.1%