NAZ streaks since 1990: 13 days - 1 11 - 3 10 - 3 9 - 2 8 - 7 7 - 16 (so half of 7-day streaks keep going) 6 - 20 5 - 42 Down streaks seem to be harder to sustain: 8 days - 3 7 - 6 6 - 14 5 - 23