Rank	Countries/Territories	Count	Percent
1	United States	445	42.7%
2	China	193	18.5%
3	Germany	114	10.9%
4	Canada	61	5.8%
5	Ireland	33	3.2%
6	South Africa	33	3.2%
7	Japan	27	2.6%
8	France	24	2.3%
9	United Kingdom	13	1.2%
10	Netherlands	12	1.2%
11	Singapore	9	0.9%
12		9	0.9%
13	Hong Kong	7	0.7%
14	India	7	0.7%
15	Norway	7	0.7%
16	Korea, Republic of	6	0.6%
17	Ukraine	5	0.5%
18	Cyprus	5	0.5%
19	Australia	4	0.4%
20	Indonesia	4	0.4%
21	Spain	4	0.4%
22	Greece	3	0.3%
23	Egypt	2	0.2%
24	Czech Republic	2	0.2%
25	Sweden	2	0.2%
26	Puerto Rico	2	0.2%
27	Romania	1	0.1%
28	New Zealand	1	0.1%
29	Malaysia	1	0.1%
30	Mongolia	1	0.1%
31	Switzerland	1	0.1%
32	Turkey	1	0.1%
33	Denmark	1	0.1%
34	Austria	1	0.1%
35	Argentina	1	0.1%
36	Israel	1	0.1%