condition mean min max 0 h after light 0.0541335 0.0 0.108267 2 h after light 0.0 0.0 0.0 4 h after light 0.053063 0.0 0.106126 8 h after light 0.1677165 0.0 0.335433 12 h after light 0.054369 0.0 0.108738 2 h after dark 0.339249 0.121186 0.557312 4 h after dark 0.212053 0.208117 0.215989 8 h after dark 0.304438 0.0 0.608876 12 h after dark 0.0 0.0 0.0