condition	mean	min	max
4 h after light	10.095345	8.29709	11.8936
8 h after light	11.924	11.8584	11.9896
12 h after light	18.7683	18.6135	18.9231
4 h after dark	29.421766666666667	28.0836	31.1837
8 h after dark	19.5654	17.097	20.9384
12 h after dark	15.623566666666667	14.5758	16.3583