condition mean min max 0 h after light 0.01737885 0.0 0.0347577 2 h after light 0.0348194 0.0 0.0696388 4 h after light 0.06938685 0.068141 0.0706327 8 h after light 0.0178796 0.0 0.0357592 12 h after light 0.0174545 0.0 0.034909 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0693405 0.0 0.138681 8 h after dark 0.01885045 0.0 0.0377009 12 h after dark 0.01855095 0.0 0.0371019