Rank	Countries/Territories	Count	Percent
1	United States	567	43.2%
2	China	311	23.7%
3	Germany	171	13%
4	France	38	2.9%
5	India	30	2.3%
6	Netherlands	27	2.1%
7	Norway	14	1.1%
8	Japan	14	1.1%
9	Romania	12	0.9%
10	Canada	11	0.8%
11	Cyprus	10	0.8%
12	Malaysia	10	0.8%
13	Korea, Republic of	7	0.5%
14	Russia	7	0.5%
15	Singapore	7	0.5%
16	Indonesia	7	0.5%
17	Switzerland	6	0.5%
18	United Kingdom	5	0.4%
19	Italy	5	0.4%
20	Denmark	4	0.3%
21	Egypt	4	0.3%
22	Colombia	4	0.3%
23	Albania	4	0.3%
24	Ukraine	4	0.3%
25	Tunisia	3	0.2%
26	Turkey	3	0.2%
27	Argentina	3	0.2%
28	Australia	2	0.2%
29	Brazil	2	0.2%
30	Iran, Islamic Republic of	2	0.2%
31	Hong Kong	2	0.2%
32	Malawi	2	0.2%
33	Mauritius	2	0.2%
34	Sweden	2	0.2%
35	Philippines	2	0.2%
36	Poland	2	0.2%
37	Nigeria	1	0.1%
38	Mexico	1	0.1%
39	Kenya	1	0.1%
40	Ireland	1	0.1%
41	Ghana	1	0.1%
42	Armenia	1	0.1%