Rank	Countries/Territories	Count	Percent
1	United States	538	41.6%
2	China	355	27.4%
3	Germany	150	11.6%
4	Japan	59	4.6%
5	France	43	3.3%
6	Czech Republic	31	2.4%
7	Singapore	21	1.6%
8	India	13	1%
9	Netherlands	12	0.9%
10	Australia	9	0.7%
11	Switzerland	6	0.5%
12	Thailand	5	0.4%
13	Turkey	5	0.4%
14	Canada	5	0.4%
15	Cyprus	5	0.4%
16	Korea, Republic of	4	0.3%
17	Latvia	4	0.3%
18	Saudi Arabia	4	0.3%
19	United Kingdom	3	0.2%
20	Costa Rica	3	0.2%
21	Argentina	3	0.2%
22	Bangladesh	2	0.2%
23	Ireland	2	0.2%
24	Ukraine	2	0.2%
25	Taiwan	2	0.2%
26	Mongolia	2	0.2%
27	Serbia	1	0.1%
28	Portugal	1	0.1%
29	Romania	1	0.1%
30	Russia	1	0.1%
31	Hong Kong	1	0.1%
32	Malaysia	1	0.1%