Rank	Countries/Territories	Count	Percent
1	United States	395	33.8%
2	China	299	25.6%
3	Germany	106	9.1%
4	India	51	4.4%
5	Spain	46	3.9%
6	United Kingdom	36	3.1%
7	Japan	25	2.1%
8	Norway	24	2.1%
9	Singapore	24	2.1%
10	Canada	15	1.3%
11	France	13	1.1%
12	Korea, Republic of	13	1.1%
13	Australia	11	0.9%
14	Romania	8	0.7%
15	Ukraine	7	0.6%
16	Netherlands	7	0.6%
17	Taiwan	6	0.5%
18	South Africa	6	0.5%
19	Hong Kong	6	0.5%
20	Austria	5	0.4%
21	Mexico	5	0.4%
22	Iran, Islamic Republic of	5	0.4%
23	Czech Republic	4	0.3%
24	Egypt	4	0.3%
25	Indonesia	4	0.3%
26	Sweden	4	0.3%
27	Turkey	3	0.3%
28	Cyprus	3	0.3%
29	Ireland	3	0.3%
30	Mauritius	3	0.3%
31	Philippines	3	0.3%
32	Greece	2	0.2%
33	Lithuania	2	0.2%
34	Israel	2	0.2%
35	Italy	2	0.2%
36	Bangladesh	2	0.2%
37	Belarus	2	0.2%
38	Belgium	2	0.2%
39	Tunisia	2	0.2%
40	Uruguay	1	0.1%
41	Brazil	1	0.1%
42	Finland	1	0.1%
43	Hungary	1	0.1%
44	Ghana	1	0.1%
45	Poland	1	0.1%
46	Mongolia	1	0.1%
47	Saudi Arabia	1	0.1%