condition	mean	min	max
4 h after light	17.998649999999998	16.846	19.1513
8 h after light	12.081150000000001	10.2901	13.8722
12 h after light	15.3035	15.2342	15.3728
4 h after dark	28.931166666666666	24.9421	32.6353
8 h after dark	37.1929	36.1098	38.1805
12 h after dark	30.889333333333333	29.1918	31.7384