Rank	Countries/Territories	Count	Percent
1	United States	474	40.1%
2	China	280	23.7%
3	Germany	142	12%
4	India	89	7.5%
5	Canada	27	2.3%
6	United Kingdom	25	2.1%
7	Japan	16	1.4%
8	Mexico	15	1.3%
9	Singapore	13	1.1%
10	Netherlands	11	0.9%
11	Ukraine	11	0.9%
12	France	11	0.9%
13	Cyprus	7	0.6%
14	Spain	7	0.6%
15	Australia	6	0.5%
16	Iran, Islamic Republic of	6	0.5%
17	Italy	5	0.4%
18	Portugal	5	0.4%
19	Malaysia	4	0.3%
20	Argentina	4	0.3%
21	Czech Republic	3	0.3%
22	Denmark	3	0.3%
23	Korea, Republic of	3	0.3%
24	Russia	3	0.3%
25	South Africa	3	0.3%
26	Egypt	2	0.2%
27	Austria	2	0.2%
28	Belgium	2	0.2%
29	Philippines	1	0.1%
30	Mongolia	1	0.1%
31	Sweden	1	0.1%