Rank	Countries/Territories	Count	Percent
1	United States	231	40.9%
2	China	155	27.4%
3	Germany	48	8.5%
4	Korea, Republic of	12	2.1%
5	Japan	10	1.8%
6	United Kingdom	8	1.4%
7	Sweden	8	1.4%
8	Canada	8	1.4%
9	Cyprus	6	1.1%
10	India	6	1.1%
11	Taiwan	6	1.1%
12	Netherlands	6	1.1%
13	Greece	5	0.9%
14	Australia	5	0.9%
15	Belgium	4	0.7%
16	Chile	3	0.5%
17	Denmark	3	0.5%
18	France	3	0.5%
19	Hong Kong	3	0.5%
20	Indonesia	3	0.5%
21	Italy	3	0.5%
22	Peru	3	0.5%
23	Philippines	3	0.5%
24	Romania	3	0.5%
25	Tunisia	3	0.5%
26	Turkey	2	0.4%
27	Singapore	2	0.4%
28	Iran, Islamic Republic of	2	0.4%
29	Ghana	2	0.4%
30	Brazil	2	0.4%
31	Hungary	1	0.2%
32	Ireland	1	0.2%
33	Israel	1	0.2%
34	Ukraine	1	0.2%
35	Russia	1	0.2%
36	Argentina	1	0.2%
37	Norway	1	0.2%