condition mean min max 0 h after light 7.810985 7.22575 8.39622 4 h after light 65.52355 63.5624 67.4847 8 h after light 76.29339999999999 72.5518 80.035 4 h after dark 0.6057025 0.458374 0.753031 8 h after dark 0.5446394999999999 0.337113 0.752166 12 h after dark 10.72129 9.28188 12.1607