Were definitely gaining this week:
Bitcoin Difficulty: 41,272,873,895
Estimated Next Difficulty: 42,951,266,410 (+4.07%)
Adjust time: After 1164 Blocks, About 7.5 days
found a nice chart 144 = 0%
http://btc.blockr.io/chartsJan 28 --------163 Jan 13 ------- 124
Jan 29 --------165 Jan 14 ------- 152
Jan 30 --------142 Jan 15 ------- 141
Jan 31 --------162 Jan 16 ------- 145
Feb 1 ------- 156 Jan 17 ------- 136
Feb 2 -------- Jan 18 ------- 157
Feb 3 -------- Jan 19 ------- 141
Feb 4 -------- Jan 20 ------- 122
Feb 5 -------- Jan 21 ------- 146
Feb 6 -------- Jan 22 ------- 138
Feb 7 -------- Jan 23 ------- 121
Feb 8 -------- Jan 24 ------- 129
Feb 9 -------- Jan 25 ------- 124
Feb 10 ------- Jan 26 ------- 129
As you can see every day has been over 144 but Jan31st
Last adjustment 4 days over 144 10 under