Rank	Countries/Territories	Count	Percent
1	China	519	39.9%
2	United States	436	33.5%
3	Germany	94	7.2%
4	Taiwan	34	2.6%
5	Japan	25	1.9%
6	France	20	1.5%
7	Singapore	20	1.5%
8	Canada	17	1.3%
9	Ukraine	15	1.2%
10	Norway	15	1.2%
11	Sweden	14	1.1%
12	Switzerland	12	0.9%
13	Korea, Republic of	11	0.8%
14	Indonesia	7	0.5%
15	Iran, Islamic Republic of	7	0.5%
16	Ireland	7	0.5%
17	United Kingdom	7	0.5%
18	Cyprus	6	0.5%
19	Belarus	5	0.4%
20	Hong Kong	4	0.3%
21	Netherlands	4	0.3%
22	Mongolia	3	0.2%
23	India	3	0.2%
24	Australia	3	0.2%
25	Austria	2	0.2%
26	Argentina	2	0.2%
27	Malaysia	2	0.2%
28	Italy	2	0.2%
29	Philippines	2	0.2%
30	Romania	2	0.2%