condition mean min max 0 h after light 0.095739 0.0 0.191478 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.1836895 0.0 0.367379 12 h after light 0.0 0.0 0.0 2 h after dark 0.1911045 0.183117 0.199092 4 h after dark 0.0887095 0.0 0.177419 8 h after dark 0.192929 0.0 0.385858 12 h after dark 0.0 0.0 0.0