Helium Report for Month of April 2001 Users Amount %ofTtl Recovrd Lost %Lost $$$$$ Adams 448 9% 432 16 4% $264.00 Andraka 8 0% 7 1 13% $6.50 Angerho 54 1% 50 4 7% $37.00 Astro 0 0 0 $0.00 B122 463 9% 442 21 5% $284.00 B155 184 4% 184 0 0% $92.00 Chemist 854 17% 765 89 10% $1,930.50 Hebard 225 5% 225 0 0% $112.50 Ihas 0 0 0 $0.00 NSC 0 0 0 $0.00 Meisel 55 1% 44 11 20% $55.00 MKBay#1 1037 21% 950 87 8% $736.00 MKBay#2 0 0 0 $0.00 MKBay#3 900 18% 860 40 4% $550.00 Sharifi 0 0 0 $0.00 Stewart 325 7% 302 23 7% $220.00 Sulliva 348 7% 328 20 6% $224.00 Takano 0 0 0 $0.00 Tanner 57 1% 43 14 25% $63.50 W129 0 0 0 $0.00 TOTAL 4958 326 $4,575.00 lL lost 382 lL lost / day 13 usage lost % 8% lL recovered at Master Meter 6391 recovery rate 94% transfers 54 $ amount is billed at $.50/lL used for physics or $2.00/lL for non-physics plus $2.50/lL lost.