condition	mean	min	max
4 h after light	11.5678	9.7956	13.34
8 h after light	12.30425	12.0334	12.5751
12 h after light	22.59985	22.1069	23.0928
4 h after dark	23.74745	22.8136	24.6813
8 h after dark	22.1343	21.9699	22.2987
12 h after dark	19.3156	18.9409	19.6903