Rank	Countries/Territories	Count	Percent
1	United States	197	47.5%
2	China	65	15.7%
3	Germany	49	11.8%
4	Canada	28	6.7%
5	Japan	14	3.4%
6	Korea, Republic of	6	1.4%
7	Norway	6	1.4%
8	United Kingdom	6	1.4%
9	Singapore	6	1.4%
10	Cyprus	5	1.2%
11	Hong Kong	5	1.2%
12	India	5	1.2%
13	Netherlands	4	1%
14	Taiwan	4	1%
15	New Zealand	3	0.7%
16	Russia	2	0.5%
17	Mexico	2	0.5%
18	Iran, Islamic Republic of	2	0.5%
19	Italy	2	0.5%
20	France	2	0.5%
21	Egypt	1	0.2%
22	Greece	1	0.2%