condition mean min max 2 h after light 4.025753333333333 3.31036 4.87377 6 h after light 2.7448550000000003 2.21964 3.53466 10 h after light 3.113865 2.21241 3.50191 14 h after light 2.5158750000000003 2.10496 2.85768 18 h after light 2.73979 1.82498 3.2392 2 h after dark 3.9074733333333334 2.5069 5.5336