Rank	Countries/Territories	Count	Percent
1	United States	605	49.8%
2	China	379	31.2%
3	Germany	69	5.7%
4	Japan	20	1.6%
5	Netherlands	18	1.5%
6	Korea, Republic of	13	1.1%
7	Portugal	11	0.9%
8	Singapore	10	0.8%
9	France	9	0.7%
10	Taiwan	8	0.7%
11	Australia	7	0.6%
12	Canada	6	0.5%
13	Finland	6	0.5%
14	India	6	0.5%
15	Russia	6	0.5%
16	United Kingdom	5	0.4%
17	Iran, Islamic Republic of	5	0.4%
18	Hong Kong	5	0.4%
19	Cyprus	5	0.4%
20	Sweden	4	0.3%
21	Bangladesh	3	0.2%
22	Ireland	2	0.2%
23	Italy	2	0.2%
24	Spain	2	0.2%
25	Romania	2	0.2%
26	Norway	2	0.2%
27	Poland	1	0.1%
28	Turkey	1	0.1%
29	Ukraine	1	0.1%
30	Brazil	1	0.1%
31	Argentina	1	0.1%
32	Egypt	1	0.1%