Rank	Countries/Territories	Count	Percent
1	United States	338	47.3%
2	China	136	19%
3	Germany	56	7.8%
4	France	23	3.2%
5	United Kingdom	21	2.9%
6	Netherlands	18	2.5%
7	Japan	10	1.4%
8	Ireland	9	1.3%
9	Australia	9	1.3%
10	Canada	9	1.3%
11	India	8	1.1%
12	Singapore	8	1.1%
13	Poland	7	1%
14	Russia	6	0.8%
15	Montenegro	6	0.8%
16	Austria	5	0.7%
17	Brazil	5	0.7%
18	Mexico	4	0.6%
19	Iraq	3	0.4%
20	Sweden	3	0.4%
21	Cyprus	3	0.4%
22	Croatia	2	0.3%
23	Chile	2	0.3%
24	Iran, Islamic Republic of	2	0.3%
25	Italy	2	0.3%
26	Afghanistan	2	0.3%
27	Hong Kong	2	0.3%
28	Philippines	2	0.3%
29	Mongolia	2	0.3%
30	Thailand	2	0.3%
31	Jordan	1	0.1%
32	Malaysia	1	0.1%
33	Malta	1	0.1%
34	Switzerland	1	0.1%
35	Portugal	1	0.1%
36	Romania	1	0.1%
37	Norway	1	0.1%
38	Czech Republic	1	0.1%
39	Finland	1	0.1%