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Means and standard deviations (sd) of the variables of the collective use of the space dimension for each season. Dotted lines represent the trend line. WIDTH is the mean team width, LENGTH is the mean team length, HEIGHT is the mean team defence depth, and GKDEF is the mean distance from the goalkeeper to their defence. a > 2012–13, b > 2013–14, c > 2014–15, d > 2015–16, e > 2016–17, f > 2017–18 and g > 2018–19 for a significance level of p < 0.05.
