Rank	Countries/Territories	Count	Percent
1	United States	300	41.8%
2	China	205	28.6%
3	Germany	61	8.5%
4	Japan	18	2.5%
5	Russia	13	1.8%
6	United Kingdom	11	1.5%
7	Korea, Republic of	11	1.5%
8	Singapore	10	1.4%
9	Netherlands	8	1.1%
10	France	8	1.1%
11	India	8	1.1%
12	Iran, Islamic Republic of	7	1%
13	Canada	6	0.8%
14	Thailand	5	0.7%
15	Italy	4	0.6%
16	Cyprus	4	0.6%
17	Hong Kong	4	0.6%
18	Egypt	3	0.4%
19	Australia	3	0.4%
20	Philippines	3	0.4%
21	Romania	3	0.4%
22	Sweden	3	0.4%
23	Slovakia	3	0.4%
24	Pakistan	2	0.3%
25	Ireland	2	0.3%
26	Kazakhstan	2	0.3%
27	Guatemala	2	0.3%
28	Iraq	1	0.1%
29	Georgia	1	0.1%
30	Greece	1	0.1%
31	Belarus	1	0.1%
32	Brazil	1	0.1%
33	Afghanistan	1	0.1%
34	Colombia	1	0.1%
35	Poland	1	0.1%
36	Spain	1	0.1%