condition mean min max 4 h after light 4.566185 3.98078 5.15159 8 h after light 4.16525 3.87832 4.45218 12 h after light 4.9598 3.82961 6.08999 4 h after dark 8.59371 8.03984 9.14758 8 h after dark 5.695545 5.56216 5.82893 12 h after dark 5.836295 5.79786 5.87473