condition mean min max 4 h after light 2.4459750000000002 1.79892 3.09303 8 h after light 2.647875 2.59229 2.70346 12 h after light 3.38873 2.80677 3.97069 4 h after dark 3.4587133333333333 2.91078 4.27799 8 h after dark 3.49187 2.80197 4.69991 12 h after dark 2.499233333333333 0.99675 3.45385