condition mean min max 4 h after light 12.5643 11.264 13.8646 8 h after light 11.61675 11.4483 11.7852 12 h after light 10.3217 10.233 10.4104 4 h after dark 9.696053333333333 9.2024 10.5482 8 h after dark 11.541566666666666 10.2172 12.2313 12 h after dark 9.928853333333333 9.07896 10.5542