condition mean min max 0 h after light 7.81555 6.91313 8.71797 2 h after light 9.14473 8.3105 9.97896 4 h after light 9.864715 9.29343 10.436 8 h after light 9.467435 9.34764 9.58723 12 h after light 13.287700000000001 11.4987 15.0767 2 h after dark 13.08245 11.7942 14.3707 4 h after dark 12.0912 11.7701 12.4123 8 h after dark 12.21145 11.9968 12.4261 12 h after dark 9.05104 6.74688 11.3552