The table illustrates the proportion of deep mines in the UK between 1913 and 2015 . There is a decrease over the period. Overall, deep mines almost disappeared and there were only five left in 2015.
In 1913, there were 3024 coal mines but this number began to fall . The number of mines went down dramatically and significantly over the subsequent years.
In 1943, There was 1690 mine left. this means that in a period of thirty years, the trend of mines had almost halved. By 1963, this graph had gradually halved again.
In the 1983, we see another huge reduction, with the number declining to round 20 percent of 1963 .
By the time the current century began , there had been dropped . In 2003 , the amount of deep mines producing coal plummeted to 20. At last, we experienced that there are only 5 mines left.