Rank	Countries/Territories	Count	Percent
1	United States	174	29.1%
2	China	164	27.4%
3	Germany	120	20.1%
4	Netherlands	34	5.7%
5	India	14	2.3%
6	Japan	8	1.3%
7	Korea, Republic of	7	1.2%
8	France	7	1.2%
9	Singapore	6	1%
10	Taiwan	5	0.8%
11	Tanzania, United Republic of	4	0.7%
12	Thailand	3	0.5%
13	Russia	3	0.5%
14	Saudi Arabia	3	0.5%
15	Malaysia	3	0.5%
16	Ghana	3	0.5%
17	Cyprus	3	0.5%
18	Australia	3	0.5%
19	Switzerland	3	0.5%
20	Viet Nam	3	0.5%
21	Argentina	2	0.3%
22	Hong Kong	2	0.3%
23	Hungary	2	0.3%
24	Canada	2	0.3%
25	Iraq	2	0.3%
26	Mongolia	2	0.3%
27	Philippines	2	0.3%
28	Turkey	2	0.3%
29	United Arab Emirates	1	0.2%
30	Portugal	1	0.2%
31	Nepal	1	0.2%
32	Ireland	1	0.2%
33	Israel	1	0.2%
34	Mexico	1	0.2%
35	Iran, Islamic Republic of	1	0.2%
36	Algeria	1	0.2%
37	Austria	1	0.2%
38	Bangladesh	1	0.2%
39	Egypt	1	0.2%
40	Ethiopia	1	0.2%