condition	mean	min	max
4 h after light	20.0034	15.7275	24.2793
8 h after light	15.9835	15.6627	16.3043
12 h after light	19.6281	17.3167	21.9395
4 h after dark	23.04135	19.7749	26.3078
8 h after dark	24.870649999999998	24.0095	25.7318
12 h after dark	26.37355	26.3493	26.3978