Rank	Countries/Territories	Count	Percent
1	United States	336	32.8%
2	China	334	32.6%
3	Germany	150	14.6%
4	Canada	37	3.6%
5	Russia	23	2.2%
6	India	21	2.1%
7	Japan	18	1.8%
8	France	13	1.3%
9	Korea, Republic of	12	1.2%
10	Singapore	9	0.9%
11	United Kingdom	7	0.7%
12	Netherlands	6	0.6%
13	Belgium	6	0.6%
14	Hong Kong	5	0.5%
15	Indonesia	4	0.4%
16	Morocco	4	0.4%
17	Romania	4	0.4%
18	Viet Nam	4	0.4%
19	Sweden	4	0.4%
20	Philippines	3	0.3%
21	Australia	3	0.3%
22	Cyprus	3	0.3%
23	Ecuador	2	0.2%
24	Argentina	2	0.2%
25	Italy	2	0.2%
26	Portugal	2	0.2%
27	Kenya	2	0.2%
28	Mexico	2	0.2%
29	Norway	1	0.1%
30	Ukraine	1	0.1%
31	United Arab Emirates	1	0.1%
32	Luxembourg	1	0.1%
33	Kazakhstan	1	0.1%
34	Bangladesh	1	0.1%