Social Service Model and Value Evaluation of Libraries under Sharing Economy

Table 4

Evaluated SSS values of libraries in 2015–2020.

Year	Item
	Service function		Service cost		Service value
	η	Ranking	γ	Ranking	ρ	Ranking
2015	0.297	6	0.283	5	0.832	6
2016	0.332	5	0.267	6	0.951	5
2017	0.396	4	0.378	2	1.254	3
2018	0.428	3	0.297	4	1.108	4
2019	0.475	2	0.316	3	1.443	2
2020	0.542	1	0.429	1	1.672	1