condition mean min max 4 h after light 105.379131 73.302114 137.456148 8 h after light 118.246979 107.463482 129.030476 12 h after light 119.4803015 110.267008 128.693595 4 h after dark 165.7851 129.735358 201.834842 8 h after dark 191.025995 162.536112 219.515878 12 h after dark 121.326345 121.326345 121.326345