Spotify do not always update their stats daily. There may be some days where the Spotify stats show a zero daily increase.
Stream counts for tracks can occasionally decrease, this occurs when Spotify removes streams from accounts they believe to be fraudulent.

Winner
The Rasmus
1 Day Increase: 43,103
3 Day Avg. Increase: 21,551
7 Day Avg. Increase: 21,243
14 Day Avg. Increase: 21,678

Out: Final
Bess
1 Day Increase: 143,841
3 Day Avg. Increase: 70,609
7 Day Avg. Increase: 69,188
14 Day Avg. Increase: 70,039
Cyan Kicks
1 Day Increase: 29,641
3 Day Avg. Increase: 14,613
7 Day Avg. Increase: 13,832
14 Day Avg. Increase: 14,101
Isaac Sene
1 Day Increase: 19,910
3 Day Avg. Increase: 9,711
7 Day Avg. Increase: 9,278
14 Day Avg. Increase: 10,210
Olivera
1 Day Increase: 11,773
3 Day Avg. Increase: 5,717
7 Day Avg. Increase: 5,163
14 Day Avg. Increase: 5,201
Tommi Lantinen
1 Day Increase: 9,320
3 Day Avg. Increase: 4,391
7 Day Avg. Increase: 3,982
14 Day Avg. Increase: 4,046
Younghearted
1 Day Increase: 53,537
3 Day Avg. Increase: 26,438
7 Day Avg. Increase: 25,513
14 Day Avg. Increase: 26,798