condition	mean	min	max
0 h after light	23.55225	21.5237	25.5808
4 h after light	17.57385	15.55	19.5977
8 h after light	15.75455	15.7152	15.7939
4 h after dark	19.8563	19.8153	19.8973
8 h after dark	21.68975	20.6476	22.7319
12 h after dark	22.314	21.7049	22.9231