condition mean min max 4 h after light 1.7650450000000002 1.50579 2.0243 8 h after light 1.768505 1.69225 1.84476 12 h after light 1.7243600000000001 1.15354 2.29518 4 h after dark 1.334265 1.13429 1.53424 8 h after dark 1.0694225 0.959895 1.17895 12 h after dark 2.10627 1.84974 2.3628