Rank	Countries/Territories	Count	Percent
1	United States	288	31.5%
2	China	231	25.3%
3	Germany	151	16.5%
4	Ireland	50	5.5%
5	France	39	4.3%
6	Sweden	34	3.7%
7	Netherlands	23	2.5%
8	Canada	22	2.4%
9	Russia	19	2.1%
10	Taiwan	9	1%
11	Korea, Republic of	7	0.8%
12	India	6	0.7%
13	Egypt	4	0.4%
14	Cyprus	4	0.4%
15	Italy	3	0.3%
16	Singapore	3	0.3%
17	United Kingdom	2	0.2%
18	Turkey	2	0.2%
19	Portugal	2	0.2%
20	Romania	2	0.2%
21	Greece	2	0.2%
22	Czech Republic	2	0.2%
23	Australia	2	0.2%
24	Belgium	2	0.2%
25	Estonia	2	0.2%
26	Iran, Islamic Republic of	1	0.1%
27	Ukraine	1	0.1%
28	Viet Nam	1	0.1%