condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0214482 0.0 0.03727 12 h after light 0.0 0.0 0.0 4 h after dark 0.053199333333333335 0.0 0.0995614 8 h after dark 0.05385773333333333 0.0 0.111784 12 h after dark 0.16303203333333333 0.0651391 0.233052