Rank	Countries/Territories	Count	Percent
1	United States	257	31.4%
2	China	223	27.2%
3	Germany	70	8.5%
4	Canada	32	3.9%
5	India	31	3.8%
6	United Kingdom	21	2.6%
7	Israel	17	2.1%
8	Australia	17	2.1%
9	Japan	15	1.8%
10	Sweden	14	1.7%
11	Philippines	14	1.7%
12	Netherlands	12	1.5%
13	Ireland	9	1.1%
14	Hong Kong	9	1.1%
15	Portugal	8	1%
16	Thailand	7	0.9%
17	Belgium	7	0.9%
18	Indonesia	7	0.9%
19	France	6	0.7%
20	Kenya	5	0.6%
21	Ukraine	5	0.6%
22	Russia	4	0.5%
23	Singapore	3	0.4%
24	Nigeria	3	0.4%
25	Switzerland	3	0.4%
26	Morocco	3	0.4%
27	Oman	2	0.2%
28	Brazil	2	0.2%
29	Argentina	2	0.2%
30	Cyprus	2	0.2%
31	Ethiopia	2	0.2%
32	Korea, Republic of	1	0.1%
33	Mongolia	1	0.1%
34	Iran, Islamic Republic of	1	0.1%
35	New Zealand	1	0.1%
36	Slovakia	1	0.1%
37	South Africa	1	0.1%
38	Suriname	1	0.1%