condition mean min max 0 h after light 1.3858350000000002 1.3846 1.38707 4 h after light 0.8810994999999999 0.632429 1.12977 8 h after light 1.1702525 0.923425 1.41708 4 h after dark 1.503495 1.50053 1.50646 8 h after dark 1.37 1.22259 1.51741 12 h after dark 1.0867895 0.886199 1.28738