Rank	Countries/Territories	Count	Percent
1	United States	548	46.2%
2	China	304	25.6%
3	Germany	127	10.7%
4	France	45	3.8%
5	Japan	30	2.5%
6	Canada	29	2.4%
7	Netherlands	20	1.7%
8	Singapore	12	1%
9	United Kingdom	9	0.8%
10	Switzerland	7	0.6%
11	Cyprus	7	0.6%
12	Egypt	6	0.5%
13	Australia	6	0.5%
14	South Africa	6	0.5%
15	Argentina	5	0.4%
16	Norway	4	0.3%
17	Ukraine	3	0.3%
18	Russia	2	0.2%
19	Bangladesh	2	0.2%
20	Korea, Republic of	2	0.2%
21	Latvia	2	0.2%
22	India	2	0.2%
23	Mexico	2	0.2%
24	Mongolia	1	0.1%
25	Iran, Islamic Republic of	1	0.1%
26	Lithuania	1	0.1%
27	Malaysia	1	0.1%
28	Brazil	1	0.1%
29	Denmark	1	0.1%
30	Sweden	1	0.1%