condition mean min max 4 h after light 0.5939823333333333 0.301147 1.13746 8 h after light 0.8340353333333334 0.183891 1.52608 12 h after light 0.6385583333333333 0.328026 0.842989 4 h after dark 1.083621 0.884233 1.20465 8 h after dark 0.902231 0.344981 1.55376 12 h after dark 0.23228000000000001 0.0 0.455035