condition mean min max 4 h after light 2.29748 1.90589 2.68907 8 h after light 4.087479999999999 4.01211 4.16285 12 h after light 6.873060000000001 6.42875 7.31737 4 h after dark 8.345125 8.30615 8.3841 8 h after dark 6.9708749999999995 6.6391 7.30265 12 h after dark 3.774005 3.44225 4.10576