Rank	Countries/Territories	Count	Percent
1	United States	243	39.3%
2	China	116	18.8%
3	Germany	110	17.8%
4	France	41	6.6%
5	Netherlands	22	3.6%
6	Latvia	15	2.4%
7	Korea, Republic of	10	1.6%
8	Cyprus	9	1.5%
9	Hong Kong	6	1%
10	Argentina	5	0.8%
11	Australia	5	0.8%
12	Japan	5	0.8%
13	Singapore	3	0.5%
14	Taiwan	2	0.3%
15	Ukraine	2	0.3%
16	Austria	2	0.3%
17	Brazil	2	0.3%
18	Chad	2	0.3%
19	India	2	0.3%
20	Indonesia	2	0.3%
21	Iran, Islamic Republic of	2	0.3%
22	Libya	2	0.3%
23	Luxembourg	1	0.2%
24	Mongolia	1	0.2%
25	Ireland	1	0.2%
26	Afghanistan	1	0.2%
27	Bulgaria	1	0.2%
28	Canada	1	0.2%
29	United Kingdom	1	0.2%
30	Oman	1	0.2%
31	Poland	1	0.2%
32	Russia	1	0.2%