Rank	Countries/Territories	Count	Percent
1	United States	272	31.6%
2	China	246	28.6%
3	Germany	130	15.1%
4	India	32	3.7%
5	Australia	26	3%
6	France	15	1.7%
7	Brazil	12	1.4%
8	Norway	12	1.4%
9	Peru	12	1.4%
10	Singapore	11	1.3%
11	Korea, Republic of	10	1.2%
12	Netherlands	9	1%
13	Canada	8	0.9%
14	Cyprus	7	0.8%
15	Belgium	7	0.8%
16	Russia	7	0.8%
17	United Kingdom	6	0.7%
18	Egypt	6	0.7%
19	Ireland	5	0.6%
20	Japan	4	0.5%
21	Morocco	4	0.5%
22	Ukraine	3	0.3%
23	Indonesia	3	0.3%
24	Lithuania	2	0.2%
25	Bulgaria	2	0.2%
26	Sweden	2	0.2%
27	Palestine, State of	2	0.2%
28	Portugal	2	0.2%
29	Pakistan	1	0.1%
30	Mongolia	1	0.1%
31	Iraq	1	0.1%