condition mean min max 0 h after light 12.67035 12.51 12.8307 4 h after light 4.476285 4.40067 4.5519 8 h after light 3.7389099999999997 3.53621 3.94161 4 h after dark 6.2281949999999995 6.02064 6.43575 8 h after dark 8.915325 7.92052 9.91013 12 h after dark 8.99308 7.12896 10.8572