condition mean min max 4 h after light 0.00893255 0.0 0.0178651 8 h after light 0.0327781 0.0 0.0655562 12 h after light 0.0401872 0.0262231 0.0541513 4 h after dark 0.033469900000000004 0.0 0.0678229 8 h after dark 0.0310236 0.0 0.0930708 12 h after dark 0.0 0.0 0.0