print(data.describe())
        nb_hab_2010   nb_hab_1999      ...            alt_min       alt_max
count  3.656800e+04  3.656800e+04      ...       36568.000000  36568.000000
mean   1.716628e+03  1.598173e+03      ...         193.157569    391.109166
std    1.470343e+04  1.393150e+04      ...         194.694120    449.305955
min    0.000000e+00  0.000000e+00      ...          -5.000000      2.000000
25%    1.940000e+02  1.750000e+02      ...          62.000000    140.000000
50%    4.270000e+02  3.795000e+02      ...         138.000000    236.000000
75%    1.050000e+03  9.252500e+02      ...         253.000000    435.000000
max    2.243833e+06  2.125851e+06      ...        1785.000000   4807.000000
[8 rows x 9 columns]