condition mean min max 4 h after light 1.67326 1.49238 1.85414 8 h after light 1.496745 1.01362 1.97987 12 h after light 2.026745 1.31246 2.74103 4 h after dark 1.1678753333333334 0.777936 1.42887 8 h after dark 0.9064023333333333 0.411541 1.53839 12 h after dark 1.190205 0.959025 1.46968