Rank	Countries/Territories	Count	Percent
1	United States	483	37.5%
2	China	294	22.8%
3	Germany	193	15%
4	Japan	95	7.4%
5	Canada	33	2.6%
6	Korea, Republic of	27	2.1%
7	France	18	1.4%
8	Netherlands	17	1.3%
9	Romania	13	1%
10	Switzerland	11	0.9%
11	Australia	11	0.9%
12	India	11	0.9%
13	Cyprus	9	0.7%
14	Singapore	9	0.7%
15	New Zealand	9	0.7%
16	Brazil	7	0.5%
17	Spain	6	0.5%
18	United Kingdom	5	0.4%
19	Russia	5	0.4%
20	Mexico	4	0.3%
21	Ireland	4	0.3%
22	Lithuania	3	0.2%
23	Norway	3	0.2%
24	Philippines	3	0.2%
25	South Africa	3	0.2%
26	Tanzania, United Republic of	2	0.2%
27	Ghana	2	0.2%
28	Hong Kong	2	0.2%
29	Malaysia	1	0.1%
30	Bangladesh	1	0.1%
31	Colombia	1	0.1%
32	Turkey	1	0.1%
33	Taiwan	1	0.1%
34	Mongolia	1	0.1%