condition mean min max 4 h after light 11.689391 11.554182 11.8246 8 h after light 10.7544395 9.102745 12.406134 12 h after light 9.520555 8.856805 10.184305 4 h after dark 11.9381085 11.440647 12.43557 8 h after dark 10.132784000000001 9.493006 10.772562 12 h after dark 9.277515 9.277515 9.277515