condition mean min max 0 h after light 5.056055000000001 5.00375 5.10836 4 h after light 10.344285 9.12177 11.5668 8 h after light 6.273595 5.67164 6.87555 4 h after dark 8.996335 7.13537 10.8573 8 h after dark 9.290495 9.27958 9.30141 12 h after dark 6.16108 5.66833 6.65383