condition mean min max 0 h after light 6.63606 5.84336 7.42876 4 h after light 5.8282 5.20843 6.44797 8 h after light 6.265665 6.16166 6.36967 4 h after dark 7.822335 6.56521 9.07946 8 h after dark 8.627235 8.34613 8.90834 12 h after dark 6.066319999999999 5.48321 6.64943