condition	mean	min	max
4 h after light	14.493	14.4879	14.4981
8 h after light	17.78625	16.8282	18.7443
12 h after light	19.31645	18.8944	19.7385
4 h after dark	22.699350000000003	21.8322	23.5665
8 h after dark	20.78935	20.1428	21.4359
12 h after dark	20.83125	19.1292	22.5333