How far away from the CFL bulbs were you when you took those measurements.
When I measured them I got the following;
23 watt cfl- 1inch from bulb 5,700 lumens 12 inches from the bulb 1,200 lumens
30 watt cfl - 1 inch 6,500 12 inches 1,600
42 watt cfl - 1inch more than 7,000(meter stops at...