condition	mean	min	max
0 h after light	4.358155	3.88078	4.83553
4 h after light	17.444499999999998	16.826	18.063
8 h after light	21.3627	21.1918	21.5336
4 h after dark	18.496000000000002	13.0561	23.9359
8 h after dark	18.21375	17.484	18.9435
12 h after dark	6.21096	5.64625	6.77567