Rank	Countries/Territories	Count	Percent
1	United States	291	42.2%
2	China	217	31.5%
3	Germany	53	7.7%
4	Japan	23	3.3%
5	France	10	1.5%
6	Switzerland	9	1.3%
7	Mexico	9	1.3%
8	Sri Lanka	7	1%
9	Cyprus	7	1%
10	Italy	6	0.9%
11	Ireland	5	0.7%
12	Canada	5	0.7%
13	Russia	5	0.7%
14	Singapore	4	0.6%
15	Mongolia	4	0.6%
16	Iran, Islamic Republic of	4	0.6%
17	Hungary	3	0.4%
18	Faroe Islands	3	0.4%
19	Netherlands	3	0.4%
20	United Kingdom	3	0.4%
21	Norway	2	0.3%
22	Slovenia	2	0.3%
23	Sweden	2	0.3%
24	Brazil	2	0.3%
25	Argentina	2	0.3%
26	Hong Kong	2	0.3%
27	Korea, Republic of	1	0.1%
28	Australia	1	0.1%
29	Greece	1	0.1%
30	Romania	1	0.1%
31	Turkey	1	0.1%
32	Ukraine	1	0.1%