condition mean min max 2 h after light 81.8617 64.8908 91.5928 6 h after light 75.90161666666667 45.1289 93.15 10 h after light 77.5173 47.691 110.234 14 h after light 73.23045 37.9949 90.1483 18 h after light 77.68183333333333 46.3613 90.9278 2 h after dark 65.16705 45.0531 84.1944