condition mean min max 0 h after light 0.282449 0.141036 0.423862 4 h after light 0.498316 0.278107 0.718525 8 h after light 0.176433 0.143566 0.2093 4 h after dark 1.563224 0.623318 2.50313 8 h after dark 2.75562 2.5697 2.94154 12 h after dark 0.522038 0.492962 0.551114