Table 3 Top 7 institutions in terms of counts and centrality

Ranking	Centrality	Year	Institutions	Count
1	0.22	2002	Univ Oregon	67
2	0.2	2004	Univ British Columbia	26
3	0.14	2004	Univ Florida	13
4	0.13	2002	Univ Kansas	47
5	0.12	2002	Univ S Florida	50
6	0.12	2017	Midwest PBIS Network	1
7	0.11	2008	Univ Pittsburgh	19