condition mean min max 4 h after light 0.0839275 0.0 0.167855 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.0700055 0.0 0.140011 8 h after dark 1.045e-07 0.0 2.09e-07 12 h after dark 0.0 0.0 0.0