condition mean min max 4 h after light 50.24901666666667 43.480340000000005 54.20665 8 h after light 54.95075 41.2323 62.153369999999995 12 h after light 31.214223333333333 28.691509999999997 33.64801 16 h after light 51.12952 31.85275 72.21186 4 h after dark 76.62322333333333 61.14285 96.30515 8 h after dark 51.054766666666666 31.464209999999998 69.87447