condition mean min max 4 h after light 6.97842 6.41514 7.5417 8 h after light 6.11767 5.84018 6.39516 12 h after light 5.1331050000000005 4.61347 5.65274 4 h after dark 2.9156233333333335 2.65366 3.12121 8 h after dark 5.246963333333333 4.47972 5.68379 12 h after dark 4.69383 4.38843 5.22529