score:1

use tickinterval:

        yaxis: {
            min: 0,
            max: 200,

            title: {
                text: ''
            },
            tickinterval: 40,
            gridlinewidth: 1,
            gridlinecolor: '#eaeaea'

        },

fiddle: http://jsfiddle.net/manishie/u6nhv/

score:1

you can use tickpositions / tickpositioner

http://api.highcharts.com/highcharts#yaxis.tickpositions

or set min/max values as manishie mentioned.


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