Rank	Countries/Territories	Count	Percent
1	China	317	36%
2	United States	288	32.7%
3	Germany	96	10.9%
4	Canada	19	2.2%
5	Spain	18	2%
6	Australia	17	1.9%
7	Japan	15	1.7%
8	Korea, Republic of	15	1.7%
9	Ireland	11	1.2%
10	Singapore	9	1%
11	United Kingdom	9	1%
12	Romania	8	0.9%
13	India	6	0.7%
14	Iran, Islamic Republic of	6	0.7%
15	France	6	0.7%
16	Netherlands	6	0.7%
17	Brazil	4	0.5%
18	Cyprus	4	0.5%
19	Taiwan	4	0.5%
20	Russia	3	0.3%
21	Slovenia	3	0.3%
22	Argentina	3	0.3%
23	Denmark	2	0.2%
24	Hungary	2	0.2%
25	Malaysia	2	0.2%
26	Ukraine	2	0.2%
27	Slovakia	2	0.2%
28	Turkey	1	0.1%
29	Sweden	1	0.1%
30	Italy	1	0.1%
31	Bulgaria	1	0.1%