Rank	Countries/Territories	Count	Percent
1	United States	401	42.2%
2	China	269	28.3%
3	Germany	67	7%
4	Netherlands	39	4.1%
5	Japan	21	2.2%
6	Singapore	18	1.9%
7	Taiwan	16	1.7%
8		16	1.7%
9	Australia	13	1.4%
10	Iran, Islamic Republic of	11	1.2%
11	United Kingdom	10	1.1%
12	Cyprus	9	0.9%
13	Canada	7	0.7%
14	Italy	7	0.7%
15	Spain	6	0.6%
16	Korea, Republic of	6	0.6%
17	Egypt	4	0.4%
18	Portugal	4	0.4%
19	Iraq	3	0.3%
20	Norway	2	0.2%
21	Palestine, State of	2	0.2%
22	Russia	2	0.2%
23	Sweden	2	0.2%
24	Ukraine	2	0.2%
25	Chile	2	0.2%
26	Latvia	2	0.2%
27	Ghana	2	0.2%
28	Iceland	2	0.2%
29	India	2	0.2%
30	Mongolia	1	0.1%
31	Brazil	1	0.1%
32	Argentina	1	0.1%
33	Uganda	1	0.1%