condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.2020517 0.0985534 0.30555 8 h after light 0.1003222 0.0988934 0.101751 4 h after dark 0.2460115 0.196344 0.295679 8 h after dark 0.14849925 0.0984465 0.198552 12 h after dark 0.0488248 0.0 0.0976496