Here are the CL June stats for the week of Feb 7, 2011...
Hour, Data Points, Average Bid Size, Average SPREAD, Average Ask Size
0...... 0........0.0..... 0.0..... 0.0
1...... 1358.... 3.9..... 5.3..... 3.9
2...... 5337.... 3.0..... 4.9..... 3.0
3...... 10263....3.3..... 4.4...