Rank	Countries/Territories	Count	Percent
1	United States	543	41.7%
2	China	519	39.8%
3	Germany	101	7.8%
4	Japan	22	1.7%
5	Netherlands	18	1.4%
6	Ireland	15	1.2%
7	France	14	1.1%
8	Australia	8	0.6%
9	South Africa	7	0.5%
10	Turkey	7	0.5%
11	Cyprus	6	0.5%
12	Korea, Republic of	5	0.4%
13	India	4	0.3%
14	Canada	4	0.3%
15	Singapore	4	0.3%
16	United Kingdom	2	0.2%
17	Spain	2	0.2%
18	Brazil	2	0.2%
19	Indonesia	2	0.2%
20	Iran, Islamic Republic of	2	0.2%
21	Hong Kong	2	0.2%
22	Hungary	2	0.2%
23	Israel	2	0.2%
24	Italy	2	0.2%
25	Malaysia	1	0.1%
26	Algeria	1	0.1%
27	Argentina	1	0.1%
28	Switzerland	1	0.1%
29	Ukraine	1	0.1%
30	New Zealand	1	0.1%
31	Romania	1	0.1%
32	Russia	1	0.1%