condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.052744 0.0 0.105488 8 h after light 0.0 0.0 0.0 4 h after dark 0.050839 0.0 0.101678 8 h after dark 0.1028215 0.0 0.205643 12 h after dark 0.0252843 0.0 0.0505686