condition mean min max 4 h after light 17.601266666666668 13.332889999999999 20.311139999999998 8 h after light 11.166806666666666 10.744530000000001 11.94802 12 h after light 9.060499 8.704692999999999 9.561592 16 h after light 4.201265 3.242064 5.248304 4 h after dark 10.906249333333333 8.125938 12.61365 8 h after dark 24.311726666666665 16.184279999999998 33.2705