condition mean min max 4 h after light 1.44748 0.0 2.89496 8 h after light 1.973365 1.58292 2.36381 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.9428185 0.632257 1.25338 12 h after dark 1.1465299999999998 1.04815 1.24491