Rank	Countries/Territories	Count	Percent
1	United States	510	45.1%
2	China	335	29.6%
3	Germany	84	7.4%
4	Japan	31	2.7%
5	France	30	2.7%
6	Canada	13	1.1%
7	United Kingdom	13	1.1%
8	Ukraine	12	1.1%
9	Singapore	12	1.1%
10	Netherlands	10	0.9%
11	Korea, Republic of	9	0.8%
12	Serbia	9	0.8%
13	India	8	0.7%
14	Egypt	8	0.7%
15	Switzerland	7	0.6%
16	Australia	6	0.5%
17	Austria	5	0.4%
18	Cyprus	4	0.4%
19	Italy	4	0.4%
20	Bangladesh	3	0.3%
21	Jordan	3	0.3%
22	Iran, Islamic Republic of	2	0.2%
23	Lithuania	2	0.2%
24	Malaysia	2	0.2%
25	Argentina	2	0.2%
26	Spain	2	0.2%
27	Taiwan	2	0.2%
28	Tunisia	1	0.1%
29	Portugal	1	0.1%
30	Russia	1	0.1%