condition mean min max 4 h after light 120.275 108.126 132.424 8 h after light 86.73525000000001 76.834 96.6365 12 h after light 305.91650000000004 297.855 313.978 4 h after dark 542.385 527.218 558.066 8 h after dark 412.96066666666667 386.6 426.75 12 h after dark 215.549 198.502 230.597