condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.29222966666666667 0.0 0.744747 12 h after light 0.27542533333333336 0.226357 0.349488 4 h after dark 1.60324 0.77408 2.51942 8 h after dark 1.65391 1.30617 2.11408 12 h after dark 0.650377 0.0 1.45058