Statistics in basketball are kept to evaluate a player's or a team's performance.
Examples of basketball statistics include: Averages per game are denoted by *PG, e.g. PPG (points), BLKPG or BPG (blocks), STPG or SPG (steals), APG (assists), RPG (rebounds) and MPG (minutes).
A quadruple double is extremely rare (and has only occurred four times in the NBA).
[1] The NBA also posts to the statistics section of its Web site a simple composite efficiency statistic, denoted EFF and derived by the formula, ((Points + Rebounds + Assists + Steals + Blocks) − ((Field Goals Attempted − Field Goals Made) + (Free Throws Attempted − Free Throws Made) + Turnovers)).
[2] While conveniently distilling most of a player's key statistics in one numerical score, the formula is not highly regarded by the statistics community, with the alternative Player Efficiency Rating developed by ESPN basketball statistician John Hollinger being more widely used to compare the overall efficiency of players.