2019 152 18.963 2019 153 18.807 2019 154 18.624 2019 155 18.487 2019 156 18.302 2019 157 18.173 2019 158 18.041 2019 159 17.905 2019 160 17.743 2019 161 17.519 2019 162 17.191 2019 163 16.864 2019 164 16.582 2019 165 16.342 2019 166 16.036 2019 167 15.729 2019 168 15.463 2019 169 15.233 2019 170 14.993 2019 171 14.719 2019 172 14.446 2019 173 14.134 2019 174 13.890 2019 175 13.662 2019 176 13.406 2019 177 13.127 2019 178 12.815 2019 179 12.542 2019 180 12.294 2019 181 12.047
Columns are Year, Day # and sea ice volume in thousand km³. So for instance volume for June 30th is 12,047 km³. If you want the full dataset since January 1 1979, it’s available from UW.