condition mean min max 4 h after light 81.6541 81.6252 81.683 8 h after light 55.247699999999995 53.1729 57.3225 12 h after light 62.269800000000004 62.1321 62.4075 4 h after dark 76.64789999999999 73.1492 80.1466 8 h after dark 97.5419 96.7331 98.3507 12 h after dark 101.236 100.001 102.471