condition mean min max 0 h after light 0.46854450000000003 0.312734 0.624355 4 h after light 2.359905 1.53895 3.18086 8 h after light 1.4032215 0.953333 1.85311 4 h after dark 2.457025 2.15467 2.75938 8 h after dark 2.16126 2.15219 2.17033 12 h after dark 1.0741779999999999 0.623516 1.52484