condition mean min max 2 h after light 11.386141666666667 7.52722 16.6727 6 h after light 9.86055 8.9331 10.2903 10 h after light 12.28715 10.6223 16.5079 14 h after light 12.625741666666666 9.88075 17.7948 18 h after light 9.087066666666667 6.59694 11.7448 2 h after dark 7.206445 6.26291 8.8442