condition mean min max 4 h after light 2.700446 2.595539 2.8332450000000002 8 h after light 2.2671943333333333 2.201966 2.340056 12 h after light 1.3558029999999999 1.310433 1.442257 16 h after light 2.727549333333333 2.3690029999999997 3.226904 4 h after dark 2.2063603333333335 2.0517630000000002 2.4475700000000002 8 h after dark 1.4993983333333334 1.443707 1.539468