Date of image Source of Image Resolution Coverage
May – July 2008 Aerial photography 1 – 2.5m 97%
April 2011 Aerial photography and Worldview satellite 0.5 – 1m 99%
April 2013 Aerial photography and Pleiades satellite 0.5 - 2m 95%
April 2015 Spot 6 satellite 1.5m 99%
April 2017 Spot 6 satellite 3m 93%
April 2018 Spot 6 satellite 3m 93%