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): 5 - Median hero bans (mb): 5 - Matches: 59

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

Balance rank	Winrate	Pickrate	Contest Rate
56.7	76.5	40.9	29.1

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Ancient Apparition	32	54.24%	100.00	40.24	12	66.67%	2.4	20	85.00%	4.0
Undying	58	98.31%	98.78	78.05	12	66.67%	2.4	46	58.70%	9.2
Viper	38	64.41%	97.56	60.98	16	75.00%	3.2	22	50.00%	4.4
Drow Ranger	38	64.41%	96.34	62.20	10	90.00%	2.0	28	46.43%	5.6
Spirit Breaker	33	55.93%	95.12	68.29	15	66.67%	3.0	18	50.00%	3.6
Witch Doctor	24	40.68%	93.90	52.44	15	60.00%	3.0	9	77.78%	1.8
Storm Spirit	29	49.15%	92.68	64.63	12	66.67%	2.4	17	52.94%	3.4
Gyrocopter	45	76.27%	91.46	84.15	26	53.85%	5.2	19	52.63%	3.8
Io	38	64.41%	90.24	79.27	14	57.14%	2.8	24	54.17%	4.8
Lion	21	35.59%	89.02	48.78	12	75.00%	2.4	9	33.33%	1.8
Morphling	16	27.12%	87.80	36.59	9	77.78%	1.8	7	42.86%	1.4
Tidehunter	16	27.12%	86.59	34.15	6	83.33%	1.2	10	50.00%	2.0
Broodmother	28	47.46%	85.37	67.07	3	33.33%	0.6	25	64.00%	5.0
Razor	9	15.25%	84.15	10.98	5	80.00%	1.0	4	75.00%	0.8
Bounty Hunter	20	33.90%	82.93	53.66	5	80.00%	1.0	15	46.67%	3.0
Queen of Pain	56	94.92%	81.71	98.78	22	40.91%	4.4	34	47.06%	6.8
Rubick	49	83.05%	80.49	96.34	41	43.90%	8.2	8	50.00%	1.6
Shadow Fiend	47	79.66%	79.27	92.68	29	41.38%	5.8	18	55.56%	3.6
Disruptor	28	47.46%	78.05	76.83	14	64.29%	2.8	14	28.57%	2.8
Clockwerk	44	74.58%	76.83	91.46	22	40.91%	4.4	22	54.55%	4.4
Phantom Lancer	19	32.20%	75.61	63.41	5	60.00%	1.0	14	50.00%	2.8
Visage	34	57.63%	74.39	90.24	12	58.33%	2.4	22	27.27%	4.4
Lich	3	5.08%	73.17	2.44	2	100.00%	0.4	1	100.00%	0.2
Leshrac	29	49.15%	71.95	86.59	14	50.00%	2.8	15	33.33%	3.0
Bristleback	26	44.07%	70.73	85.37	15	46.67%	3.0	11	36.36%	2.2
Phoenix	13	22.03%	69.51	46.34	5	60.00%	1.0	8	50.00%	1.6
Shadow Shaman	10	16.95%	68.29	37.80	5	60.00%	1.0	5	60.00%	1.0
Earthshaker	44	74.58%	67.07	100.00	27	40.74%	5.4	17	23.53%	3.4
Slark	8	13.56%	65.85	31.71	5	60.00%	1.0	3	66.67%	0.6
Windranger	15	25.42%	64.63	71.95	10	50.00%	2.0	5	40.00%	1.0
Dark Seer	30	50.85%	63.41	95.12	20	35.00%	4.0	10	50.00%	2.0
Lifestealer	7	11.86%	62.20	17.07	2	100.00%	0.4	5	40.00%	1.0
Treant Protector	4	6.78%	60.98	9.76	4	75.00%	0.8	0	0.00%	0.0
Templar Assassin	9	15.25%	59.76	42.68	5	60.00%	1.0	4	50.00%	0.8
Tiny	6	10.17%	58.54	21.95	5	60.00%	1.0	1	100.00%	0.2
Shadow Demon	6	10.17%	57.32	15.85	3	66.67%	0.6	3	66.67%	0.6
Chen	13	22.03%	56.10	54.88	3	33.33%	0.6	10	60.00%	2.0
Abaddon	2	3.39%	54.88	1.22	2	100.00%	0.4	0	0.00%	0.0
Pugna	2	3.39%	54.88	8.54	2	100.00%	0.4	0	0.00%	0.0
Lina	30	50.85%	52.44	97.56	18	33.33%	3.6	12	41.67%	2.4
Winter Wyvern	14	23.73%	51.22	70.73	4	25.00%	0.8	10	60.00%	2.0
Axe	10	16.95%	50.00	56.10	7	42.86%	1.4	3	66.67%	0.6
Invoker	9	15.25%	48.78	45.12	5	60.00%	1.0	4	25.00%	0.8
Vengeful Spirit	7	11.86%	47.56	35.37	4	50.00%	0.8	3	66.67%	0.6
Jakiro	2	3.39%	46.34	7.32	1	100.00%	0.2	1	100.00%	0.2
Mirana	2	3.39%	46.34	7.32	1	100.00%	0.2	1	100.00%	0.2
Batrider	14	23.73%	43.90	82.93	7	42.86%	1.4	7	28.57%	1.4
Lycan	8	13.56%	42.68	51.22	5	40.00%	1.0	3	66.67%	0.6
Nature's Prophet	7	11.86%	41.46	47.56	6	50.00%	1.2	1	0.00%	0.2
Brewmaster	5	8.47%	40.24	32.93	3	33.33%	0.6	2	100.00%	0.4
Zeus	7	11.86%	39.02	59.76	6	33.33%	1.2	1	100.00%	0.2
Sven	3	5.08%	37.80	13.41	2	50.00%	0.4	1	100.00%	0.2
Enigma	3	5.08%	37.80	13.41	2	50.00%	0.4	1	100.00%	0.2
Omniknight	1	1.69%	35.37	4.88	1	100.00%	0.2	0	0.00%	0.0
Faceless Void	1	1.69%	35.37	4.88	1	100.00%	0.2	0	0.00%	0.0
Dragon Knight	13	22.03%	32.93	93.90	11	27.27%	2.2	2	0.00%	0.4
Puck	5	8.47%	31.71	39.02	2	50.00%	0.4	3	33.33%	0.6
Dazzle	7	11.86%	30.49	69.51	5	40.00%	1.0	2	0.00%	0.4
Juggernaut	10	16.95%	29.27	89.02	7	28.57%	1.4	3	0.00%	0.6
Ember Spirit	7	11.86%	28.05	75.61	4	25.00%	0.8	3	33.33%	0.6
Bane	2	3.39%	26.83	14.63	2	50.00%	0.4	0	0.00%	0.0
Crystal Maiden	3	5.08%	25.61	41.46	3	33.33%	0.6	0	0.00%	0.0
Weaver	4	6.78%	24.39	50.00	3	33.33%	0.6	1	0.00%	0.2
Skywrath Mage	4	6.78%	23.17	58.54	4	25.00%	0.8	0	0.00%	0.0
Nyx Assassin	4	6.78%	23.17	58.54	4	25.00%	0.8	0	0.00%	0.0
Night Stalker	2	3.39%	20.73	20.73	1	0.00%	0.2	1	100.00%	0.2
Enchantress	2	3.39%	20.73	20.73	1	0.00%	0.2	1	100.00%	0.2
Sniper	2	3.39%	20.73	20.73	1	0.00%	0.2	1	100.00%	0.2
Keeper of the Light	3	5.08%	17.07	43.90	2	0.00%	0.4	1	100.00%	0.2
Beastmaster	4	6.78%	15.85	65.85	2	0.00%	0.4	2	50.00%	0.4
Spectre	7	11.86%	14.63	87.80	2	0.00%	0.4	5	20.00%	1.0
Timbersaw	3	5.08%	13.41	81.71	3	0.00%	0.6	0	0.00%	0.0
Legion Commander	3	5.08%	13.41	81.71	3	0.00%	0.6	0	0.00%	0.0
Sand King	3	5.08%	10.98	74.39	2	0.00%	0.4	1	0.00%	0.2
Slardar	3	5.08%	10.98	74.39	2	0.00%	0.4	1	0.00%	0.2
Naga Siren	1	1.69%	8.54	30.49	1	0.00%	0.2	0	0.00%	0.0
Tinker	1	1.69%	8.54	30.49	1	0.00%	0.2	0	0.00%	0.0
Clinkz	1	1.69%	8.54	30.49	1	0.00%	0.2	0	0.00%	0.0
Centaur Warrunner	1	1.69%	8.54	30.49	1	0.00%	0.2	0	0.00%	0.0
Magnus	1	1.69%	8.54	30.49	1	0.00%	0.2	0	0.00%	0.0
Venomancer	1	1.69%	8.54	30.49	1	0.00%	0.2	0	0.00%	0.0
Huskar	1	1.69%	8.54	30.49	1	0.00%	0.2	0	0.00%	0.0