Rank	Countries/Territories	Count	Percent
1	United States	249	53.1%
2	China	73	15.6%
3	Korea, Republic of	34	7.2%
4	India	31	6.6%
5	Russia	11	2.3%
6	Japan	10	2.1%
7	Germany	7	1.5%
8	Hong Kong	6	1.3%
9	Ireland	6	1.3%
10	Netherlands	5	1.1%
11	Singapore	5	1.1%
12	Spain	4	0.9%
13	Czech Republic	4	0.9%
14	United Kingdom	3	0.6%
15	Switzerland	2	0.4%
16	Taiwan	2	0.4%
17	Norway	2	0.4%
18	Australia	2	0.4%
19	Bangladesh	2	0.4%
20	Brazil	2	0.4%
21	Canada	2	0.4%
22	New Zealand	1	0.2%
23	Nepal	1	0.2%
24	Argentina	1	0.2%
25	Romania	1	0.2%
26	Serbia	1	0.2%
27	Ukraine	1	0.2%
28	Sweden	1	0.2%