condition mean min max 0 h after light 3.5321 3.52895 3.53525 4 h after light 1.3193074999999999 0.898935 1.73968 8 h after light 0.4490325 0.0 0.898065 4 h after dark 0.0 0.0 0.0 8 h after dark 1.3106675 0.868895 1.75244 12 h after dark 1.752511 0.861862 2.64316