Rank	Countries/Territories	Count	Percent
1	United States	580	37.1%
2	China	486	31.1%
3	Germany	151	9.7%
4	Czech Republic	76	4.9%
5	Netherlands	38	2.4%
6	France	35	2.2%
7	Canada	25	1.6%
8	Norway	23	1.5%
9	India	22	1.4%
10	Japan	18	1.2%
11	United Kingdom	16	1%
12	Spain	14	0.9%
13	Singapore	14	0.9%
14	Ireland	9	0.6%
15	Cyprus	8	0.5%
16	Hong Kong	7	0.4%
17	South Africa	6	0.4%
18	Australia	6	0.4%
19	Korea, Republic of	6	0.4%
20	Sweden	5	0.3%
21	Uganda	4	0.3%
22	Mongolia	2	0.1%
23	New Zealand	2	0.1%
24	Latvia	2	0.1%
25	Argentina	2	0.1%
26	Austria	1	0.1%
27	Malaysia	1	0.1%
28	Greece	1	0.1%
29	Russia	1	0.1%
30	Ukraine	1	0.1%