condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.06394823333333333 0.0 0.137476 12 h after light 0.07955633333333333 0.0 0.238669 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0