Rank	Countries/Territories	Count	Percent
1	United States	573	44.1%
2	China	419	32.3%
3	Germany	153	11.8%
4	France	36	2.8%
5	Canada	16	1.2%
6	Netherlands	16	1.2%
7	Japan	15	1.2%
8	Spain	8	0.6%
9	Sweden	8	0.6%
10	United Kingdom	8	0.6%
11	Australia	7	0.5%
12	Belgium	5	0.4%
13	Singapore	5	0.4%
14	Austria	4	0.3%
15	Brazil	3	0.2%
16	Latvia	3	0.2%
17	Korea, Republic of	2	0.2%
18	Hong Kong	2	0.2%
19	Cyprus	2	0.2%
20	Finland	2	0.2%
21	Italy	2	0.2%
22	Norway	2	0.2%
23	Taiwan	2	0.2%
24	Turkey	1	0.1%
25	Ukraine	1	0.1%
26	Ireland	1	0.1%
27	Israel	1	0.1%
28	Mongolia	1	0.1%