Rank	Countries/Territories	Count	Percent
1	United States	485	40.5%
2	China	340	28.4%
3	Germany	164	13.7%
4	Poland	43	3.6%
5	Japan	29	2.4%
6		26	2.2%
7	Netherlands	22	1.8%
8	Singapore	16	1.3%
9	Canada	15	1.3%
10	Australia	7	0.6%
11	France	6	0.5%
12	United Kingdom	6	0.5%
13	Iran, Islamic Republic of	5	0.4%
14	Cyprus	4	0.3%
15	South Africa	4	0.3%
16	Romania	3	0.3%
17	Switzerland	3	0.3%
18	Russia	2	0.2%
19	Bangladesh	2	0.2%
20	India	2	0.2%
21	Mexico	2	0.2%
22	Pakistan	2	0.2%
23	Philippines	1	0.1%
24	New Zealand	1	0.1%
25	Mongolia	1	0.1%
26	Finland	1	0.1%
27	Ghana	1	0.1%
28	Hong Kong	1	0.1%
29	Sweden	1	0.1%
30	Turkey	1	0.1%
31	Ukraine	1	0.1%