condition	mean	min	max
4 h after light	17.10625	16.7153	17.4972
8 h after light	22.4004	21.2815	23.5193
12 h after light	25.8292	24.1738	27.4846
4 h after dark	27.34505	25.1412	29.5489
8 h after dark	24.0912	23.2466	24.9358
12 h after dark	26.18	23.3603	28.9997