condition mean min max 0 h after light 2.4089650000000002 2.18301 2.63492 2 h after light 1.63132 1.37397 1.88867 4 h after light 4.625025000000001 4.37696 4.87309 8 h after light 17.26585 15.9179 18.6138 12 h after light 8.881 8.17208 9.58992 2 h after dark 9.31515 8.95951 9.67079 4 h after dark 7.76886 7.02563 8.51209 8 h after dark 6.46823 5.61761 7.31885 12 h after dark 3.1922300000000003 2.68331 3.70115