condition mean min max 0 h after light 145.8365 141.76 149.913 4 h after light 156.768 153.372 160.164 8 h after light 91.5677 90.795 92.3404 4 h after dark 33.2108 31.9108 34.5108 8 h after dark 109.6745 108.646 110.703 12 h after dark 149.565 148.166 150.964