Rank	Countries/Territories	Count	Percent
1	United States	490	48.2%
2	China	187	18.4%
3	Germany	108	10.6%
4	Czech Republic	35	3.4%
5	Poland	17	1.7%
6	Japan	15	1.5%
7	Canada	15	1.5%
8	Bulgaria	14	1.4%
9	Belgium	14	1.4%
10	Korea, Republic of	11	1.1%
11	Norway	11	1.1%
12	United Kingdom	10	1%
13	Singapore	10	1%
14	Hong Kong	10	1%
15	Australia	9	0.9%
16	Cyprus	9	0.9%
17	Brazil	7	0.7%
18	Ukraine	7	0.7%
19	Netherlands	6	0.6%
20	Lebanon	5	0.5%
21	India	4	0.4%
22	France	3	0.3%
23	Taiwan	3	0.3%
24	Malaysia	2	0.2%
25	New Zealand	2	0.2%
26	Denmark	2	0.2%
27	Austria	2	0.2%
28	Argentina	2	0.2%
29	Bangladesh	1	0.1%
30	Ireland	1	0.1%
31	Portugal	1	0.1%
32	Romania	1	0.1%
33	Turkey	1	0.1%
34	Spain	1	0.1%