condition mean min max 4 h after light 10.444391 10.090381 10.798401 8 h after light 11.845082999999999 11.558068 12.132098 12 h after light 12.073252499999999 11.745037 12.401468 4 h after dark 12.2075345 12.086692 12.328377 8 h after dark 10.459934 10.3134 10.606468 12 h after dark 10.870093 10.870093 10.870093