condition mean min max 4 h after light 0.873934 0.780188 0.96768 8 h after light 1.003191 0.948162 1.05822 12 h after light 0.5455075 0.512013 0.579002 4 h after dark 0.93512 0.84346 1.02678 8 h after dark 0.588776 0.507217 0.670335 12 h after dark 0.9329369999999999 0.700714 1.16516