Rank	Countries/Territories	Count	Percent
1	United States	482	46.8%
2	China	325	31.6%
3	Germany	66	6.4%
4	India	29	2.8%
5	Canada	17	1.7%
6	Australia	11	1.1%
7	France	11	1.1%
8	Japan	10	1%
9	Norway	9	0.9%
10	Russia	8	0.8%
11	Singapore	8	0.8%
12	Netherlands	7	0.7%
13	Argentina	6	0.6%
14	Hong Kong	5	0.5%
15	Switzerland	5	0.5%
16	Iran, Islamic Republic of	4	0.4%
17	Cyprus	3	0.3%
18	Bangladesh	3	0.3%
19	Brazil	3	0.3%
20	Colombia	2	0.2%
21	Libya	2	0.2%
22	Malaysia	2	0.2%
23	Mongolia	2	0.2%
24	New Zealand	2	0.2%
25	Ukraine	2	0.2%
26	United Kingdom	1	0.1%
27	Philippines	1	0.1%
28	Poland	1	0.1%
29	Ghana	1	0.1%
30	Georgia	1	0.1%