condition mean min max 2 h after light 0.8767485 0.123006 1.57716 6 h after light 0.3143465 0.148756 0.695179 10 h after light 0.79727 0.302414 1.82967 14 h after light 0.7265966833333334 0.0967901 1.77169 18 h after light 0.6771856666666667 0.302368 1.51607 2 h after dark 0.7758986666666666 0.164271 1.52953