# date (year)	 area (km^2)
    2013.904	       0.000
    2013.929	       0.057
    2014.016	       0.090
    2014.079	      -0.049
    2014.104	       0.010
    2014.255	      -0.016
    2014.674	       0.235
    2014.718	       0.493
    2014.737	       0.209
    2014.893	       0.264
    2015.044	       0.102
    2015.088	       0.135
    2015.156	       0.152
    2015.682	       0.510
    2015.877	       0.062
    2015.989	       0.053
    2016.033	       0.001
    2016.183	      -0.114
    2016.295	      -0.053
    2016.776	       0.122
    2016.863	       0.133
    2016.883	       0.157
    2017.014	       0.045
    2017.038	      -0.010
    2017.258	      -0.353
    2017.277	      -0.406
    2017.759	       0.011
    2017.784	      -0.350
    2017.959	       0.015
    2018.090	      -0.079
    2018.153	      -0.452
    2018.197	      -0.213
    2018.660	      -0.004
    2018.748	       0.116
    2018.855	       0.034
    2018.986	      -0.002
    2019.030	       0.179
    2019.142	       0.023
    2019.186	       0.081
    2019.205	       0.024
    2019.249	       0.041
    2019.293	       0.035
    2019.668	       0.076
    2019.844	       0.024
    2019.907	       0.039
    2019.932	       0.005
    2019.951	       0.077
    2019.975	       0.148
    2020.126	      -0.131
    2020.150	      -0.086
    2020.781	       0.036
    2020.806	       0.282
    2021.025	       0.067
    2021.068	       0.072
    2021.219	      -0.102
    2021.288	      -0.200
    2021.789	       0.228
    2021.877	       0.267
    2021.890	       0.253
    2022.099	       0.252
    2022.164	       0.305
    2022.208	       0.317
    2022.734	       0.236
    2022.737	       0.345
    2022.822	       0.330
    2022.841	       0.280
    2022.929	       0.328
    2022.932	       0.340
    2023.060	       0.214
    2023.126	       0.214
    2023.214	       0.336
    2023.236	       0.171
