Rank	Countries/Territories	Count	Percent
1	United States	301	41.2%
2	China	191	26.1%
3	Germany	57	7.8%
4	Netherlands	37	5.1%
5	Taiwan	16	2.2%
6		16	2.2%
7	Australia	13	1.8%
8	Japan	13	1.8%
9	United Kingdom	10	1.4%
10	Iran, Islamic Republic of	9	1.2%
11	Cyprus	7	1%
12	Italy	7	1%
13	Singapore	6	0.8%
14	Spain	6	0.8%
15	Canada	6	0.8%
16	Korea, Republic of	6	0.8%
17	Egypt	4	0.5%
18	Portugal	4	0.5%
19	Iraq	3	0.4%
20	Ghana	2	0.3%
21	Iceland	2	0.3%
22	India	2	0.3%
23	Chile	2	0.3%
24	Norway	2	0.3%
25	Sweden	2	0.3%
26	Ukraine	2	0.3%
27	Uganda	1	0.1%
28	Russia	1	0.1%
29	Brazil	1	0.1%
30	Argentina	1	0.1%
31	Mongolia	1	0.1%