Rank	Countries/Territories	Count	Percent
1	United States	497	47.4%
2	China	340	32.4%
3	Germany	69	6.6%
4	Netherlands	15	1.4%
5	Japan	14	1.3%
6	Korea, Republic of	12	1.1%
7	Portugal	10	1%
8	Singapore	9	0.9%
9	France	9	0.9%
10	Taiwan	8	0.8%
11	Russia	6	0.6%
12	Australia	6	0.6%
13	Canada	6	0.6%
14	India	6	0.6%
15	Iran, Islamic Republic of	5	0.5%
16	Hong Kong	5	0.5%
17	Cyprus	5	0.5%
18	Finland	4	0.4%
19	Sweden	4	0.4%
20	United Kingdom	4	0.4%
21	Spain	2	0.2%
22	Norway	2	0.2%
23	Ireland	2	0.2%
24	Italy	2	0.2%
25	Egypt	1	0.1%
26	Argentina	1	0.1%
27	Brazil	1	0.1%
28	Poland	1	0.1%
29	Romania	1	0.1%
30	Turkey	1	0.1%