condition	mean	min	max
4 h after light	18.5783	18.0419	19.1147
8 h after light	12.3921	12.2953	12.4889
12 h after light	14.7962	14.2901	15.3023
4 h after dark	17.824399999999997	16.2975	19.3513
8 h after dark	20.686100000000003	20.446	20.9262
12 h after dark	21.29925	20.5354	22.0631