condition	mean	min	max
0 h after light	19.894	18.5854	21.2026
4 h after light	20.52445	16.878	24.1709
8 h after light	18.72215	14.501	22.9433
4 h after dark	25.436	21.7997	29.0723
8 h after dark	27.3571	26.9804	27.7338
12 h after dark	21.91085	20.8433	22.9784