condition	mean	min	max
4 h after light	20.296300000000002	17.67	22.9226
8 h after light	16.05445	14.8193	17.2896
12 h after light	21.872999999999998	21.6173	22.1287
4 h after dark	23.626733333333334	22.8495	24.8038
8 h after dark	26.3137	25.2342	28.3492
12 h after dark	24.449766666666665	23.4806	25.0965