condition mean min max 0 h after light 1.1272 1.10843 1.14597 4 h after light 1.727355 1.61056 1.84415 8 h after light 1.7277550000000002 1.52471 1.9308 4 h after dark 1.9059 1.66882 2.14298 8 h after dark 1.913075 1.45212 2.37403 12 h after dark 1.5574599999999998 1.22335 1.89157