condition mean min max 0 h after light 3.347925 2.64262 4.05323 4 h after light 5.62224 5.2891 5.95538 8 h after light 6.723985 6.72291 6.72506 4 h after dark 6.919684999999999 6.67385 7.16552 8 h after dark 5.7384699999999995 5.24917 6.22777 12 h after dark 5.590475 5.37239 5.80856