condition	mean	min	max
0 h after light	7.6348199999999995	7.40885	7.86079
4 h after light	4.807855	3.79151	5.8242
8 h after light	6.7637149999999995	6.48667	7.04076
4 h after dark	7.75938	7.26347	8.25529
8 h after dark	6.67045	6.64246	6.69844
12 h after dark	6.15362	5.94574	6.3615