condition mean min max 4 h after light 5.066535 4.76754 5.36553 8 h after light 5.157830000000001 4.85311 5.46255 12 h after light 5.786365 5.67077 5.90196 4 h after dark 6.595575 6.43723 6.75392 8 h after dark 7.342255 7.1943 7.49021 12 h after dark 6.744925 6.70307 6.78678