condition	mean	min	max
0 h after light	16.14495	15.4848	16.8051
4 h after light	16.1333	14.1221	18.1445
8 h after light	18.2388	16.9448	19.5328
4 h after dark	23.6158	22.0116	25.22
8 h after dark	21.1188	20.5055	21.7321
12 h after dark	16.8517	13.6599	20.0435