condition mean min max 2 h after light 0.9819758333333334 0.190019 2.88665 6 h after light 0.7941523333333333 0.362425 1.35073 10 h after light 1.3828215 0.0 3.28197 14 h after light 1.8237431666666666 0.704291 3.27379 18 h after light 1.2668825 0.404648 3.66366 2 h after dark 1.473453 0.569168 4.13402