condition mean min max 0 h after light 5.813635 5.30963 6.31764 2 h after light 15.33235 14.9774 15.6873 4 h after light 7.4210899999999995 7.24063 7.60155 8 h after light 7.018795 5.69989 8.3377 12 h after light 15.066400000000002 14.2749 15.8579 2 h after dark 16.747999999999998 14.0761 19.4199 4 h after dark 9.074895 8.3935 9.75629 8 h after dark 10.47822 9.16934 11.7871 12 h after dark 6.90327 6.56266 7.24388