Rank	Countries/Territories	Count	Percent
1	United States	231	30.6%
2	China	182	24.1%
3	Germany	91	12.1%
4	Japan	77	10.2%
5	Singapore	47	6.2%
6	Slovenia	16	2.1%
7		16	2.1%
8	France	14	1.9%
9	Korea, Republic of	13	1.7%
10	Australia	9	1.2%
11	Russia	9	1.2%
12	India	8	1.1%
13	United Kingdom	6	0.8%
14	Netherlands	5	0.7%
15	Malaysia	4	0.5%
16	Cyprus	4	0.5%
17	Taiwan	3	0.4%
18	Ukraine	2	0.3%
19	Poland	2	0.3%
20	Portugal	2	0.3%
21	Canada	2	0.3%
22	Argentina	2	0.3%
23	Italy	2	0.3%
24	Greece	2	0.3%
25	Mongolia	1	0.1%
26	Bangladesh	1	0.1%
27	Brazil	1	0.1%
28	Spain	1	0.1%
29	Sweden	1	0.1%
30	Switzerland	1	0.1%