condition mean min max 2 h after light 0.18195983333333332 0.110345 0.317205 6 h after light 0.190396 0.0 0.377733 10 h after light 0.3358125 0.107264 1.05353 14 h after light 0.4188986666666667 0.110787 0.933529 18 h after light 0.525505 0.127305 0.744198 2 h after dark 0.48905 0.179064 0.743866