condition	mean	min	max
0 h after light	30.23855	28.208	32.2691
4 h after light	14.33125	13.4572	15.2053
8 h after light	11.09063	8.10216	14.0791
4 h after dark	16.1182	15.9073	16.3291
8 h after dark	19.16095	17.3515	20.9704
12 h after dark	19.00555	15.1116	22.8995