condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.09386565 0.0806943 0.107037 4 h after dark 0.0705305 0.0 0.141061 8 h after dark 0.12339565 0.0700673 0.176724 12 h after dark 0.1171885 0.0 0.234377