Rank	Countries/Territories	Count	Percent
1	United States	424	47.7%
2	China	166	18.7%
3	Germany	102	11.5%
4	France	37	4.2%
5	Japan	34	3.8%
6	Italy	17	1.9%
7	Norway	13	1.5%
8	United Kingdom	11	1.2%
9	Singapore	11	1.2%
10	Canada	10	1.1%
11	Brazil	7	0.8%
12	Iran, Islamic Republic of	7	0.8%
13	Slovenia	7	0.8%
14	Australia	6	0.7%
15	Russia	5	0.6%
16	Netherlands	4	0.5%
17	Argentina	4	0.5%
18	Cyprus	3	0.3%
19	Czech Republic	3	0.3%
20	Indonesia	3	0.3%
21	Korea, Republic of	3	0.3%
22	Malaysia	3	0.3%
23	India	2	0.2%
24	Spain	2	0.2%
25	Switzerland	2	0.2%
26	Rwanda	1	0.1%
27	Mongolia	1	0.1%