condition mean min max 2 h after light 1.076278 0.244481 2.15994 6 h after light 0.8462255 0.0 1.49884 10 h after light 6.9351575 0.564969 27.93 14 h after light 5.628340000000001 1.36156 14.4663 18 h after light 1.065903 0.447016 2.33628 2 h after dark 1.546206 0.217667 2.51505