condition mean min max 3 h after light 0.8403466666666667 0.644883 1.18211 6 h after light 1.142649 0.284199 2.37958 9 h after light 0.8265833333333333 0.454182 1.33957 12 h after light 2.9141215 0.472826 7.01045 3 h after dark 2.52788 1.91288 3.06241 6 h after dark 1.4795233333333333 0.99529 2.40369 9 h after dark 2.19353 1.53299 3.14718 12 h after dark 6.26074 5.68294 6.83854