Rank	Countries/Territories	Count	Percent
1	United States	395	41.3%
2	China	209	21.8%
3	Germany	192	20.1%
4	Australia	20	2.1%
5	Netherlands	19	2%
6	Spain	17	1.8%
7	United Kingdom	13	1.4%
8	Japan	9	0.9%
9	Korea, Republic of	9	0.9%
10	Canada	9	0.9%
11	Bulgaria	7	0.7%
12	Cyprus	6	0.6%
13	Russia	6	0.6%
14	Ukraine	5	0.5%
15	France	5	0.5%
16	Iran, Islamic Republic of	5	0.5%
17	Chile	4	0.4%
18	Romania	4	0.4%
19	Singapore	3	0.3%
20	Switzerland	2	0.2%
21	Norway	2	0.2%
22	Bangladesh	2	0.2%
23	Italy	2	0.2%
24	Hong Kong	2	0.2%
25	India	2	0.2%
26	Georgia	1	0.1%
27	Brazil	1	0.1%
28	Austria	1	0.1%
29	Argentina	1	0.1%
30	Pakistan	1	0.1%
31	Portugal	1	0.1%
32	Mongolia	1	0.1%
33	Jordan	1	0.1%