Rank	Countries/Territories	Count	Percent
1	China	329	49.3%
2	United States	86	12.9%
3	Germany	49	7.3%
4	Iran, Islamic Republic of	33	4.9%
5	Singapore	22	3.3%
6	United Kingdom	22	3.3%
7	Ireland	14	2.1%
8	Japan	11	1.6%
9	Romania	10	1.5%
10	Hong Kong	10	1.5%
11	India	9	1.3%
12	Malaysia	8	1.2%
13	Australia	6	0.9%
14	Brazil	6	0.9%
15	Canada	6	0.9%
16	Nigeria	5	0.7%
17	Taiwan	4	0.6%
18	Indonesia	4	0.6%
19	Mongolia	3	0.4%
20	Argentina	3	0.4%
21	France	3	0.4%
22	Pakistan	2	0.3%
23	Philippines	2	0.3%
24	Portugal	2	0.3%
25	Korea, Republic of	2	0.3%
26	Ukraine	2	0.3%
27	Viet Nam	2	0.3%
28	Estonia	2	0.3%
29	Ghana	2	0.3%
30	Netherlands	2	0.3%
31	New Zealand	1	0.1%
32	Italy	1	0.1%
33	Congo	1	0.1%
34	Denmark	1	0.1%
35	Turkey	1	0.1%
36	Norway	1	0.1%