condition	mean	min	max
4 h after light	20.7974915	19.452184	22.142799
8 h after light	20.2258705	17.642804	22.808937
12 h after light	21.526034	20.019066	23.033002
4 h after dark	21.689329999999998	21.465364	21.913296
8 h after dark	19.036288	15.142138	22.930438
12 h after dark	22.808937	22.808937	22.808937