|Energy source||Arenas||Floor space|
|#||QI||millions of m2||QI||Share (%)|
|Electricity and natural gas only||507||A||3.15||A||26.8|
|Electricity and propane only||276||A||1.06||A||9.0|
|Electricity and other combined sources||36||A||0.13||A||1.1|
|Electricity, natural gas and other combined||89||A||0.74||A||6.3|
|Electricity, natural gas and propane||896||A||4.70||A||40.0|
|Electricity, propane and other combined||209||A||0.79||A||6.7|
|All (electricity, natural gas, propane and other combined)||113||A||0.95||A||8.1|
(1) Due to rounding, numbers may not add up to the total shown, and some numbers may differ from one table to the next.
(2) Quality indicators (QI) classify each estimate according to its quality as follows: A–Excellent, B–Good, C–Acceptable, F–Unreliable, and X–suppressed due to confidentiality.