See the horizontal bar graph with negative and positive values.
http://alexyoung.github.io/ico/examples.html
25th value is not visible, it has negative y value.
(for me: <text fill="#000000" stroke="none" font="10px "Arial"" style="text-anchor: end; font: 10px "Arial";" text-anchor="end" y="-3.375" x="21"><tspan>25</tspan></text> )
new Ico.HorizontalBarGraph($('horizontal_negative_and_positive'), [-57,-31,-87,66,-30,-77,-88,-75,-20,-48,-56,-91,16,-41,-87,-69,-65,-62,58,-15,-49,-75,-42,-78,-79]);