Rank	Countries/Territories	Count	Percent
1	United States	424	43.8%
2	China	291	30.1%
3	Germany	67	6.9%
4	France	17	1.8%
5	Japan	12	1.2%
6	Korea, Republic of	12	1.2%
7	United Kingdom	11	1.1%
8	India	11	1.1%
9	Canada	10	1%
10	Chile	10	1%
11	Sweden	8	0.8%
12	Netherlands	8	0.8%
13	Australia	7	0.7%
14	Cyprus	7	0.7%
15	Taiwan	6	0.6%
16	Italy	6	0.6%
17	Greece	5	0.5%
18	Argentina	4	0.4%
19	Belgium	4	0.4%
20	Denmark	3	0.3%
21	Hong Kong	3	0.3%
22	Indonesia	3	0.3%
23	Ireland	3	0.3%
24	Tunisia	3	0.3%
25	Peru	3	0.3%
26	Philippines	3	0.3%
27	Romania	3	0.3%
28	Russia	3	0.3%
29	Singapore	3	0.3%
30	Spain	2	0.2%
31	Turkey	2	0.2%
32	Ukraine	2	0.2%
33	Iran, Islamic Republic of	2	0.2%
34	Ghana	2	0.2%
35	Finland	2	0.2%
36	Brazil	2	0.2%
37	Hungary	1	0.1%
38	Israel	1	0.1%
39	Norway	1	0.1%