condition mean min max 4 h after light 7.3581199999999995 7.015039999999999 7.53383 8 h after light 8.911356666666666 8.662930000000001 9.10966 12 h after light 10.12079 10.04378 10.17933 4 h after dark 10.468110000000001 10.334810000000001 10.642000000000001 8 h after dark 10.305213333333333 10.05412 10.642330000000001 12 h after dark 9.496853333333334 9.03298 9.75928