condition mean min max 2 h after light 0.5173771666666667 0.175611 0.76112 6 h after light 0.4843256666666667 0.135865 1.17917 10 h after light 0.5094420000000001 0.276207 0.771283 14 h after light 0.8584769999999999 0.624437 1.14923 18 h after light 1.0046788333333334 0.435661 1.77186 2 h after dark 0.47188766666666665 0.20968 0.887882