condition	mean	min	max
0 h after light	6.3889499999999995	6.2301	6.5478
4 h after light	5.38957	5.36663	5.41251
8 h after light	4.851655	4.36142	5.34189
4 h after dark	5.615575	5.08822	6.14293
8 h after dark	7.003275	6.64351	7.36304
12 h after dark	5.852855	5.68046	6.02525