condition	mean	min	max
4 h after light	19.7218	18.1226	21.321
8 h after light	17.64785	17.5526	17.7431
12 h after light	15.39705	14.1357	16.6584
4 h after dark	24.9347	24.2909	25.5785
8 h after dark	30.81065	30.2796	31.3417
12 h after dark	24.864	24.3884	25.3396