Rank	Countries/Territories	Count	Percent
1	United States	551	43.1%
2	China	385	30.1%
3	Germany	105	8.2%
4	Japan	53	4.2%
5	France	38	3%
6	Singapore	17	1.3%
7	United Kingdom	16	1.3%
8	Russia	13	1%
9	Ukraine	12	0.9%
10	Canada	11	0.9%
11	Netherlands	10	0.8%
12	Norway	8	0.6%
13	Cyprus	8	0.6%
14	Hong Kong	7	0.5%
15	India	6	0.5%
16	Australia	6	0.5%
17	Argentina	4	0.3%
18	Korea, Republic of	4	0.3%
19	Mongolia	4	0.3%
20	Israel	3	0.2%
21	Malaysia	3	0.2%
22	Romania	3	0.2%
23	Turkey	2	0.2%
24	Iran, Islamic Republic of	2	0.2%
25	Hungary	2	0.2%
26	Brazil	2	0.2%
27	Bangladesh	1	0.1%
28	Switzerland	1	0.1%