condition mean min max 0 h after light 0.3693135 0.316985 0.421642 4 h after light 0.1074055 0.0 0.214811 8 h after light 0.262226 0.107302 0.41715 4 h after dark 0.3111935 0.31058 0.311807 8 h after dark 0.156298 0.104691 0.207905 12 h after dark 0.31122099999999997 0.210538 0.411904