Rank	Countries/Territories	Count	Percent
1	United States	431	43.4%
2	China	292	29.4%
3	Germany	80	8.1%
4	Australia	20	2%
5	Russia	18	1.8%
6	Japan	15	1.5%
7	Canada	14	1.4%
8	Taiwan	13	1.3%
9	Korea, Republic of	12	1.2%
10	Netherlands	10	1%
11	Italy	10	1%
12	France	9	0.9%
13	Singapore	9	0.9%
14	United Kingdom	7	0.7%
15	Peru	6	0.6%
16	Ireland	6	0.6%
17	Indonesia	4	0.4%
18	Cyprus	4	0.4%
19	Turkey	4	0.4%
20	Ukraine	3	0.3%
21	Romania	3	0.3%
22	Argentina	3	0.3%
23	Austria	3	0.3%
24	Bangladesh	2	0.2%
25	Brazil	2	0.2%
26	Finland	2	0.2%
27	India	2	0.2%
28	Malaysia	2	0.2%
29	Mongolia	1	0.1%
30	Philippines	1	0.1%
31	Nigeria	1	0.1%
32	Norway	1	0.1%
33	Iran, Islamic Republic of	1	0.1%
34	Israel	1	0.1%
35	Bulgaria	1	0.1%