Dates (formatted month/day/year) are based on patch note releases, which are usually a day before patch or early access releases, thus the 2.0 date used.
2.0 (day before early access) - 8/23/13
113 days
2.1 - 12/14/13
102 days
2.2 - 3/26/14
103 days
2.3 - 7/7/14
112 days
2.4 - 10/27/14
84 days
2.5 - 1/19/15
151 days
3.0 - 6/19/15
143 days
3.1 - 11/9/15
105 days
3.2 - 2/22/16
105 days
3.3 - 6/6/16
112 days
3.4 - 9/26/16
112 days
3.5 - 1/16/17
150 days
4.0 - 6/15/17
116 days
4.1 - 10/9/17
112 days
4.2 - 1/29/18
112 days
4.3 - 5/21/18
119 days
4.4 - 9/17/18
112 days
4.5 - 1/7/19
171 days
5.0 - 6/27/19
123 days
5.1 - 10/28/19
112 days
5.2 - 2/17/20
119 days (planned)
5.3 (planned) - 6/15/20
175 days (actual)
5.3 (actual) - 8/10/20
112 days after 8/10/20 - 11/30/20 (meaning a December 1 release)
119 days after 8/10/20 - 12/7/20 (meaning a December 8 release)