Rank	Countries/Territories	Count	Percent
1	United States	208	33.8%
2	China	206	33.5%
3	Germany	56	9.1%
4	Japan	18	2.9%
5	France	15	2.4%
6	Canada	10	1.6%
7	Korea, Republic of	9	1.5%
8	Netherlands	9	1.5%
9	Ireland	9	1.5%
10	United Kingdom	9	1.5%
11	Oman	9	1.5%
12	Nigeria	6	1%
13	India	5	0.8%
14	Indonesia	4	0.7%
15	Australia	4	0.7%
16	Cyprus	4	0.7%
17	Singapore	4	0.7%
18	Thailand	4	0.7%
19	Mexico	3	0.5%
20	Brazil	3	0.5%
21	Italy	3	0.5%
22	Mauritius	2	0.3%
23	Burkina Faso	2	0.3%
24	Russia	2	0.3%
25	South Africa	2	0.3%
26	United Arab Emirates	2	0.3%
27	Viet Nam	1	0.2%
28	Taiwan	1	0.2%
29	Tanzania, United Republic of	1	0.2%
30	Romania	1	0.2%
31	Argentina	1	0.2%
32	Egypt	1	0.2%
33	Georgia	1	0.2%