condition	mean	min	max
4 h after light	7.922364999999999	7.48337	8.36136
8 h after light	7.56038	7.36642	7.75434
12 h after light	5.913365	5.86771	5.95902
4 h after dark	6.43691	5.88855	7.06422
8 h after dark	8.952533333333333	7.7549	9.91979
12 h after dark	7.07022	6.98857	7.16315