Explain this to me

This table contains stats for heroes' picks and bans.
Rank is used to sort heroes by winrate, taking number of their picks and bans into account. Higher rank means the hero is stronger. Rev-Rank (Reverse Rank) is used to show the least effective heroes with the most number of matches.
Balance metric estimates how balanced the meta is (0 to 100)

Median hero picks (mp): 4 - Median hero bans (mb): 5 - Matches: 41

Remove low picks (0.9mp) Remove low bans (0.9mb)

Balance rank	Winrate	Pickrate	Contest Rate
61.5	82.4	39.5	42.7

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Clockwerk	16	39.02%	100.00	9.47	3	100.00%	0.8	13	84.62%	2.6
Meepo	17	41.46%	98.95	26.32	5	60.00%	1.3	12	91.67%	2.4
Centaur Warrunner	33	80.49%	97.89	69.47	14	71.43%	3.5	19	52.63%	3.8
Doom	34	82.93%	96.84	75.79	9	55.56%	2.3	25	64.00%	5.0
Keeper of the Light	14	34.15%	95.79	27.37	6	66.67%	1.5	8	87.50%	1.6
Phoenix	25	60.98%	94.74	65.26	10	70.00%	2.5	15	53.33%	3.0
Enchantress	21	51.22%	93.68	54.74	8	62.50%	2.0	13	69.23%	2.6
Lone Druid	5	12.20%	92.63	3.16	1	100.00%	0.3	4	100.00%	0.8
Grimstroke	11	26.83%	91.58	28.42	6	66.67%	1.5	5	80.00%	1.0
Vengeful Spirit	12	29.27%	90.53	35.79	7	71.43%	1.8	5	60.00%	1.0
Hoodwink	16	39.02%	89.47	56.84	13	69.23%	3.3	3	0.00%	0.6
Io	8	19.51%	88.42	13.68	2	100.00%	0.5	6	66.67%	1.2
Invoker	19	46.34%	87.37	63.16	8	75.00%	2.0	11	36.36%	2.2
Naga Siren	15	36.59%	86.32	49.47	4	75.00%	1.0	11	54.55%	2.2
Templar Assassin	15	36.59%	86.32	49.47	4	75.00%	1.0	11	54.55%	2.2
Puck	26	63.41%	84.21	83.16	13	53.85%	3.3	13	46.15%	2.6
Tusk	20	48.78%	83.16	68.42	5	40.00%	1.3	15	66.67%	3.0
Rubick	23	56.10%	82.11	78.95	11	54.55%	2.8	12	50.00%	2.4
Chen	23	56.10%	81.05	76.84	3	100.00%	0.8	20	40.00%	4.0
Alchemist	13	31.71%	80.00	46.32	6	83.33%	1.5	7	28.57%	1.4
Dark Seer	8	19.51%	78.95	20.00	3	66.67%	0.8	5	80.00%	1.0
Timbersaw	37	90.24%	77.89	97.89	6	50.00%	1.5	31	38.71%	6.2
Monkey King	19	46.34%	76.84	74.74	4	75.00%	1.0	15	40.00%	3.0
Faceless Void	33	80.49%	75.79	95.79	13	38.46%	3.3	20	45.00%	4.0
Ember Spirit	22	53.66%	74.74	86.32	10	30.00%	2.5	12	75.00%	2.4
Mars	20	48.78%	73.68	84.21	12	50.00%	3.0	8	37.50%	1.6
Luna	14	34.15%	72.63	66.32	7	57.14%	1.8	7	42.86%	1.4
Razor	9	21.95%	71.58	38.95	4	50.00%	1.0	5	80.00%	1.0
Death Prophet	13	31.71%	70.53	62.11	6	50.00%	1.5	7	57.14%	1.4
Pugna	13	31.71%	69.47	64.21	6	66.67%	1.5	7	28.57%	1.4
Lina	10	24.39%	68.42	47.37	4	50.00%	1.0	6	66.67%	1.2
Lion	20	48.78%	67.37	90.53	10	40.00%	2.5	10	50.00%	2.0
Void Spirit	7	17.07%	66.32	22.11	2	50.00%	0.5	5	80.00%	1.0
Tiny	19	46.34%	65.26	89.47	9	44.44%	2.3	10	40.00%	2.0
Enigma	9	21.95%	64.21	36.84	1	100.00%	0.3	8	50.00%	1.6
Abaddon	2	4.88%	63.16	2.11	2	100.00%	0.5	0	0.00%	0.0
Shadow Demon	9	21.95%	62.11	51.58	4	75.00%	1.0	5	20.00%	1.0
Techies	18	43.90%	61.05	91.58	15	40.00%	3.8	3	33.33%	0.6
Gyrocopter	4	9.76%	60.00	7.37	1	100.00%	0.3	3	66.67%	0.6
Morphling	12	29.27%	58.95	70.53	5	40.00%	1.3	7	57.14%	1.4
Primal Beast	20	48.78%	57.89	93.68	9	22.22%	2.3	11	63.64%	2.2
Batrider	25	60.98%	56.84	96.84	6	33.33%	1.5	19	36.84%	3.8
Storm Spirit	16	39.02%	55.79	88.42	9	33.33%	2.3	7	57.14%	1.4
Pangolier	15	36.59%	54.74	81.05	4	50.00%	1.0	11	36.36%	2.2
Windranger	19	46.34%	53.68	94.74	8	50.00%	2.0	11	18.18%	2.2
Queen of Pain	5	12.20%	52.63	21.05	3	66.67%	0.8	2	50.00%	0.4
Earthshaker	4	9.76%	51.58	15.79	2	50.00%	0.5	2	100.00%	0.4
Ursa	11	26.83%	50.53	77.89	6	50.00%	1.5	5	20.00%	1.0
Pudge	8	19.51%	49.47	58.95	5	40.00%	1.3	3	66.67%	0.6
Anti-Mage	9	21.95%	48.42	60.00	2	50.00%	0.5	7	42.86%	1.4
Muerta	7	17.07%	47.37	57.89	6	50.00%	1.5	1	0.00%	0.2
Dragon Knight	13	31.71%	46.32	82.11	3	33.33%	0.8	10	40.00%	2.0
Oracle	3	7.32%	45.26	14.74	3	66.67%	0.8	0	0.00%	0.0
Nyx Assassin	5	12.20%	44.21	25.26	2	50.00%	0.5	3	66.67%	0.6
Weaver	5	12.20%	43.16	37.89	3	66.67%	0.8	2	0.00%	0.4
Terrorblade	7	17.07%	42.11	52.63	2	50.00%	0.5	5	40.00%	1.0
Slark	12	29.27%	41.05	87.37	3	33.33%	0.8	9	33.33%	1.8
Silencer	4	9.76%	40.00	34.74	4	50.00%	1.0	0	0.00%	0.0
Nature's Prophet	19	46.34%	38.95	100.00	9	22.22%	2.3	10	30.00%	2.0
Outworld Destroyer	7	17.07%	37.89	61.05	3	33.33%	0.8	4	50.00%	0.8
Mirana	1	2.44%	36.84	1.05	1	100.00%	0.3	0	0.00%	0.0
Phantom Assassin	1	2.44%	36.84	4.21	1	100.00%	0.3	0	0.00%	0.0
Medusa	8	19.51%	34.74	71.58	3	33.33%	0.8	5	40.00%	1.0
Magnus	8	19.51%	33.68	80.00	5	40.00%	1.3	3	0.00%	0.6
Snapfire	4	9.76%	32.63	45.26	3	33.33%	0.8	1	100.00%	0.2
Tidehunter	4	9.76%	32.63	45.26	3	33.33%	0.8	1	100.00%	0.2
Jakiro	2	4.88%	30.53	8.42	1	100.00%	0.3	1	0.00%	0.2
Winter Wyvern	13	31.71%	29.47	98.95	8	12.50%	2.0	5	40.00%	1.0
Arc Warden	7	17.07%	28.42	85.26	5	20.00%	1.3	2	50.00%	0.4
Treant Protector	1	2.44%	27.37	6.32	0	0.00%	0.0	1	100.00%	0.2
Dark Willow	1	2.44%	27.37	6.32	0	0.00%	0.0	1	100.00%	0.2
Crystal Maiden	8	19.51%	25.26	92.63	6	16.67%	1.5	2	50.00%	0.4
Viper	4	9.76%	24.21	50.53	2	0.00%	0.5	2	100.00%	0.4
Juggernaut	5	12.20%	23.16	72.63	3	33.33%	0.8	2	0.00%	0.4
Kunkka	4	9.76%	22.11	67.37	4	25.00%	1.0	0	0.00%	0.0
Undying	2	4.88%	21.05	12.63	0	0.00%	0.0	2	50.00%	0.4
Bloodseeker	2	4.88%	21.05	12.63	0	0.00%	0.0	2	50.00%	0.4
Zeus	2	4.88%	21.05	12.63	0	0.00%	0.0	2	50.00%	0.4
Elder Titan	2	4.88%	17.89	24.21	1	0.00%	0.3	1	100.00%	0.2
Lycan	2	4.88%	17.89	24.21	1	0.00%	0.3	1	100.00%	0.2
Lifestealer	3	7.32%	15.79	55.79	2	0.00%	0.5	1	100.00%	0.2
Legion Commander	2	4.88%	14.74	43.16	0	0.00%	0.0	2	0.00%	0.4
Marci	1	2.44%	13.68	33.68	1	0.00%	0.3	0	0.00%	0.0
Bane	1	2.44%	13.68	33.68	1	0.00%	0.3	0	0.00%	0.0
Ancient Apparition	1	2.44%	13.68	33.68	1	0.00%	0.3	0	0.00%	0.0
Disruptor	1	2.44%	13.68	33.68	1	0.00%	0.3	0	0.00%	0.0
Visage	1	2.44%	9.47	18.95	0	0.00%	0.0	1	0.00%	0.2
Night Stalker	1	2.44%	9.47	18.95	0	0.00%	0.0	1	0.00%	0.2
Riki	1	2.44%	7.37	33.68	1	0.00%	0.3	0	0.00%	0.0
Brewmaster	2	4.88%	6.32	43.16	0	0.00%	0.0	2	0.00%	0.4
Spirit Breaker	1	2.44%	5.26	18.95	0	0.00%	0.0	1	0.00%	0.2
Clinkz	2	4.88%	4.21	53.68	1	0.00%	0.3	1	0.00%	0.2
Huskar	2	4.88%	3.16	43.16	0	0.00%	0.0	2	0.00%	0.4
Slardar	2	4.88%	3.16	43.16	0	0.00%	0.0	2	0.00%	0.4
Beastmaster	3	7.32%	1.05	74.74	1	0.00%	0.3	2	0.00%	0.4