condition mean min max 4 h after light 12.943557 10.686131 15.200983 8 h after light 11.475074 11.411733 11.538415 12 h after light 13.023201499999999 11.123672 14.922731 4 h after dark 12.2889335 12.172434 12.405433 8 h after dark 11.487773 10.669166 12.30638 12 h after dark 11.074471 11.074471 11.074471