Rank	Countries/Territories	Count	Percent
1	United States	609	44.2%
2	China	428	31.1%
3	Germany	160	11.6%
4	Japan	28	2%
5	France	21	1.5%
6	Romania	15	1.1%
7	Canada	14	1%
8	Netherlands	13	0.9%
9	Australia	11	0.8%
10	Turkey	10	0.7%
11	Singapore	8	0.6%
12	Cyprus	8	0.6%
13	Argentina	7	0.5%
14	Iran, Islamic Republic of	6	0.4%
15	South Africa	5	0.4%
16	India	4	0.3%
17	Korea, Republic of	4	0.3%
18	Puerto Rico	3	0.2%
19	Ukraine	3	0.2%
20	United Arab Emirates	2	0.1%
21	United Kingdom	2	0.1%
22	Greece	2	0.1%
23	Hong Kong	2	0.1%
24	Finland	2	0.1%
25	Brazil	2	0.1%
26	Bulgaria	2	0.1%
27	Austria	1	0.1%
28	Georgia	1	0.1%
29	Norway	1	0.1%
30	Poland	1	0.1%
31	Russia	1	0.1%
32	Sweden	1	0.1%