condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.4322 0.0 0.8644 12 h after light 0.458459 0.394127 0.522791 4 h after dark 0.863708 0.349466 1.37795 8 h after dark 1.6308799999999999 1.20842 2.05334 12 h after dark 0.626097 0.572372 0.679822