condition mean min max 4 h after light 13.580881 12.529999 14.631763 8 h after light 11.115664500000001 9.842599 12.38873 12 h after light 11.2480195 10.935886 11.560153 4 h after dark 15.650307999999999 12.646676 18.65394 8 h after dark 13.5912755 12.064417 15.118134 12 h after dark 10.820087 10.820087 10.820087