Rank	Countries/Territories	Count	Percent
1	United States	319	28.3%
2	China	193	17.1%
3	Germany	92	8.2%
4	United Kingdom	67	5.9%
5	India	58	5.1%
6	Canada	46	4.1%
7	Hong Kong	32	2.8%
8	Iran, Islamic Republic of	32	2.8%
9	Brazil	25	2.2%
10	Netherlands	21	1.9%
11	Australia	20	1.8%
12	Pakistan	20	1.8%
13	Japan	18	1.6%
14		17	1.5%
15	Ireland	16	1.4%
16	France	13	1.2%
17	Spain	13	1.2%
18	Sweden	9	0.8%
19	Korea, Republic of	9	0.8%
20	Ukraine	8	0.7%
21	Russia	8	0.7%
22	Malaysia	7	0.6%
23	Czech Republic	6	0.5%
24	Turkey	6	0.5%
25	Singapore	5	0.4%
26	Ecuador	5	0.4%
27	Italy	5	0.4%
28	Nigeria	5	0.4%
29	Norway	4	0.4%
30	Cyprus	4	0.4%
31	Taiwan	4	0.4%
32	Nepal	3	0.3%
33	Poland	3	0.3%
34	Algeria	3	0.3%
35	Argentina	3	0.3%
36	Bangladesh	3	0.3%
37	New Zealand	3	0.3%
38	Mexico	3	0.3%
39	Mongolia	2	0.2%
40	Luxembourg	2	0.2%
41	Israel	2	0.2%
42	Egypt	2	0.2%
43	Greece	2	0.2%
44	Puerto Rico	2	0.2%
45	Romania	1	0.1%
46	Sri Lanka	1	0.1%
47	United Arab Emirates	1	0.1%
48	Finland	1	0.1%
49	Iraq	1	0.1%
50	Libya	1	0.1%
51	Lithuania	1	0.1%