condition	mean	min	max
4 h after light	19.25365	18.3926	20.1147
8 h after light	20.408749999999998	18.4528	22.3647
12 h after light	18.3366	17.4938	19.1794
4 h after dark	29.0891	28.7675	29.4107
8 h after dark	27.92135	26.8577	28.985
12 h after dark	25.96485	25.941	25.9887