condition	mean	min	max
4 h after light	22.8682205	16.77284	28.963601
8 h after light	16.1877445	14.005822	18.369667
12 h after light	23.360344	20.220445	26.500243
4 h after dark	16.199113	12.227577	20.170649
8 h after dark	19.55901	14.019558	25.098462
12 h after dark	49.435913	49.435913	49.435913